all#video#mental-math#arithmetic#algebra#story#geometry#fractions#number-theory#percentages#powers#combinatorics#linear-equations#sequences#statistics#roots#calculus#probability#area#speed#multi-part#money#multiplication#quadratics#logarithms#exponents#seconde#time#logic#rounding#social-arithmetic#geometric#ratio#classic
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L@leo.countsLv 2#powers#exponents
Power up ⚡

52=  ?5^{2} = \;?
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M@mika.mathLv 2#geometry#area
6 cm4 cm
Area check 📐

A rectangle is 6 cm wide and 4 cm tall.

Find its area (in cm²).
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M@mika.mathLv 1#mental-math#rounding
Rounding 🎯

Round 861861 to the nearest 100100.
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M@mika.mathLv 2#geometry#area
9 cm3 cm
Rectangle area 📐

A rectangle is 99 cm by 33 cm.

Area (in cm²)?
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S@sana.kLv 3#percentages
Percent power 💯

What is 75%75\% of 300300?
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R@ramanujan22Lv 3#sequences#geometric
What comes next? 🔁

1, 2, 4, 8, 1,\ 2,\ 4,\ 8,\ \ldots
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P@pixel.patLv 3#mental-math#arithmetic
Quick multiply ✖️

18×4=  ?18 \times 4 = \;?
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A@ada.lynnLv 2#mental-math#arithmetic
Quick subtract ➖

5548=  ?55 - 48 = \;?
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M@ms.riveraLv 2#percentages#social-arithmetic
👟 A shop gives a 30% discount on shoes priced at 200 dollars.

How many dollars must be paid?
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T@tessa.tLv 3#powers
Cube it 🧊

103=  ?10^{3} = \;?
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L@leo.countsLv 1#powers
Square it ▪️

122=  ?12^{2} = \;?
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M@ms.riveraLv 3#percentages#multi-part
💯 Percentages — find each:
10% of 200=10\% \text{ of } 200 =
25% of 80=25\% \text{ of } 80 =
50% of 90=50\% \text{ of } 90 =
20% of 150=20\% \text{ of } 150 =
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M@ms.riveraLv 3#powers#multi-part
⚡ Powers of 2 — evaluate each:
23=2^3 =
25=2^5 =
28=2^8 =
210=2^{10} =
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R@ramanujan22Lv 1#mental-math#arithmetic
Quick divide ➗

14÷2=  ?14 \div 2 = \;?
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D@deriv.danLv 2#roots
Square root 🌱

121=  ?\sqrt{121} = \;?
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S@sana.kLv 4#number-theory#video
Least common multiple 🔢

lcm(11,5)=  ?\text{lcm}(11, 5) = \;?
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Z@zoe_primesLv 2#arithmetic#story
Bus ride 🚌

A bus leaves the station with 11 passengers. At the next stop, 6 get off and 11 get on.

How many passengers are on the bus now?
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M@mr.deanLv 3#number-theory
🔢 What is the GCD of 24 and 36?
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R@ramanujan22Lv 2#mental-math#arithmetic
Quick subtract ➖

5214=  ?52 - 14 = \;?
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L@leo.countsLv 1#mental-math#arithmetic
Quick divide ➗

64÷8=  ?64 \div 8 = \;?
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Z@zoe_primesLv 2#number-theory
Remainder 🧮

What is the remainder of 13÷413 \div 4?
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R@ramanujan22Lv 3#geometry#area
6 cm9 cm
Triangle area 📐

A triangle has base 66 cm and height 99 cm.

Area (in cm²)?
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S@sana.kLv 2#mental-math#arithmetic
Quick add ➕

24+58=  ?24 + 58 = \;?
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T@tessa.tLv 3#statistics
Median 📊

Numbers: 17,32,27,30,117, 32, 27, 30, 1.

Median?
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A@ada.lynnLv 1#mental-math#multiplication
Times table ⏩

What is 5×55 \times 5?
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P@pixel.patLv 3#fractions
Add the fractions 🍰

29+59=  ?\frac{2}{9} + \frac{5}{9} = \;?
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L@leo.countsLv 2#powers
Cube it 🧊

43=  ?4^{3} = \;?
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M@mr.deanLv 3#logic
🧩 Complete the pattern: 1, 4, 9, 16, 25, ...
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T@tessa.tLv 2#arithmetic#sequences
Next number? 🔢

2, 9, 16, 23, 2,\ 9,\ 16,\ 23,\ \ldots
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M@math.classLv 2#statistics
⚖️ Three children weigh 30 kg, 35 kg, and 40 kg.

What is their mean weight in kg?
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D@deriv.danLv 1#powers
Square it ▪️

62=  ?6^{2} = \;?
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Z@zoe_primesLv 2#roots
Square root 🌱

144=  ?\sqrt{144} = \;?
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T@tessa.tLv 3#fractions
Add the fractions 🍰

25+25=  ?\frac{2}{5} + \frac{2}{5} = \;?
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N@niko.solvesLv 1#mental-math#arithmetic
Quick add ➕

28+21=  ?28 + 21 = \;?
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Z@zoe_primesLv 4#time#video
Clock angle 🕐

Angle between the hands at 10:0010{:}00 (in degrees)?
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D@deriv.danLv 3#fractions
Simplify 🔽

1220=  ?\frac{12}{20} = \;?
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M@mika.mathLv 3#sequences
Sum it up ➕

1+2++7=  ?1 + 2 + \cdots + 7 = \;?
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M@math.classLv 3#geometry#area
16 cm9 cm
📐 The area of a triangle with base 16 cm and height 9 cm is? (in cm²)
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S@sana.kLv 1#powers
Square it ▪️

82=  ?8^{2} = \;?
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M@ms.riveraLv 3#ratio
🍞 A recipe for 4 people needs 200 grams of flour.

How many grams of flour for 10 people?
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D@deriv.danLv 1#money#story
Piggy bank 🐷

Sofia saves 7 dollars every week.

How many dollars after 4 weeks?
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N@niko.solvesLv 3#combinatorics
Factorial ❗

5!=  ?5! = \;?
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Z@zoe_primesLv 2#mental-math#arithmetic
Quick subtract ➖

3011=  ?30 - 11 = \;?
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L@leo.countsLv 1#mental-math#arithmetic
Quick divide ➗

70÷10=  ?70 \div 10 = \;?
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M@mika.mathLv 3#statistics
Median 📊

Numbers: 1,36,14,18,261, 36, 14, 18, 26.

Median?
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M@mika.mathLv 1#mental-math#arithmetic
Quick add ➕

31+71=  ?31 + 71 = \;?
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T@tessa.tLv 2#story#speed
Train trip 🚆

A train travels at 60 km/h for 5 hours.

How far does it go (in km)?
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A@ada.lynnLv 2#arithmetic#story
Bus ride 🚌

A bus leaves the station with 20 passengers. At the next stop, 13 get off and 10 get on.

How many passengers are on the bus now?
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P@pixel.patLv 2#mental-math#arithmetic
Quick subtract ➖

8436=  ?84 - 36 = \;?
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T@tessa.tLv 2#geometry
12 cm8 cm
Rectangle perimeter 📐

A rectangle is 1212 cm by 88 cm.

Perimeter (in cm)?
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D@deriv.danLv 3#probability
One die 🎲

Probability of an even number? (as a fraction)
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M@mika.mathLv 1#mental-math
Quick!
7×86=?7 \times 8 - 6 = \,?
2
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N@niko.solvesLv 2#geometry#area
11 cm9 cm
Rectangle area 📐

A rectangle is 1111 cm by 99 cm.

Area (in cm²)?
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M@mr.deanLv 5#geometry#video
?513
📐 A right triangle has hypotenuse 13 cm and one leg 5 cm.

How many cm is the other leg?
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P@pixel.patLv 1#mental-math#multiplication
Times table ⏩

What is 12×512 \times 5?
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R@ramanujan22Lv 1#mental-math#arithmetic
Quick add ➕

21+40=  ?21 + 40 = \;?
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L@leo.countsLv 2#mental-math
169=?\sqrt{169} = \,?
2
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L@leo.countsLv 3#fractions
Add the fractions 🍰

47+47=  ?\frac{4}{7} + \frac{4}{7} = \;?
0
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S@sana.kLv 2#powers
Cube it 🧊

53=  ?5^{3} = \;?
0
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L@leo.countsLv 2#mental-math#arithmetic
Quick add ➕

15+77=  ?15 + 77 = \;?
0
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D@deriv.danLv 2#powers#exponents
Power up ⚡

42=  ?4^{2} = \;?
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S@sana.kLv 2#story#speed
Train trip 🚆

A train travels at 60 km/h for 3 hours.

How far does it go (in km)?
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S@sana.kLv 3#percentages
Growth 📈

Increase 200200 by 20%20\%.

Result?
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M@mr.deanLv 3#statistics
📊 What is the range of the data 12, 45, 23, 8, 34?
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L@leo.countsLv 3#percentages
Growth 📈

Increase 320320 by 10%10\%.

Result?
0
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M@math.classLv 2#powers
⚡ What is 252^5?
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N@niko.solvesLv 3#geometry#area
18 cm10 cm
Triangle area 📐

A triangle has base 1818 cm and height 1010 cm.

Area (in cm²)?
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M@math.classLv 3#mental-math#multiplication#multi-part
✖️ Times tables — evaluate each:
12×12=12 \times 12 =
13×4=13 \times 4 =
15×6=15 \times 6 =
25×8=25 \times 8 =
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N@niko.solvesLv 3#sequences#geometric
What comes next? 🔁

1, 3, 9, 27, 1,\ 3,\ 9,\ 27,\ \ldots
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Z@zoe_primesLv 1#money
Make change 💵

You pay 50 dollars for a 8-dollar item.

Change (in dollars)?
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M@mika.mathLv 2#arithmetic#sequences
Next number? 🔢

9, 14, 19, 24, 9,\ 14,\ 19,\ 24,\ \ldots
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Z@zoe_primesLv 3#powers#exponents
Power up ⚡

54=  ?5^{4} = \;?
0
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P@pixel.patLv 3#algebra#linear-equations
Solve for xx 🔍

6x+9=756x + 9 = 75
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R@ramanujan22Lv 2#powers#exponents
Power up ⚡

32=  ?3^{2} = \;?
0
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S@sana.kLv 2#mental-math#arithmetic
Quick multiply ✖️

9×9=  ?9 \times 9 = \;?
0
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T@tessa.tLv 1#mental-math#arithmetic
Quick subtract ➖

6322=  ?63 - 22 = \;?
0
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Z@zoe_primesLv 3#percentages
Growth 📈

Increase 360360 by 50%50\%.

Result?
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D@deriv.danLv 3#statistics
Median 📊

Numbers: 32,7,2,32,1832, 7, 2, 32, 18.

Median?
0
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P@pixel.patLv 2#geometry
4 cm
Square area 📐

A square has side 44 cm.

Area (in cm²)?