Number Ninja
What is 25 × 4
100
Simplify 12/16.
3/4
0.6 × 100 = ?
60
How many degrees in a triangle?
180°
I am an odd number. Take away one letter, and I become even. What am I?
seven
480 ÷ 12 = ?
40
2/3 + 1/6 = ?
5/6
Write 3/5 as a decimal.
0.6
What is the perimeter of a square with side 12 cm?
48 cm
I am thinking of a number. Double me and add 8, the result is 22. What is my number?
7
Write the Roman numeral for 49
XLIX
3/4 ÷ 1/8 = ?
6
Arrange in ascending order: 0.45, 0.405, 0.54
0.405, 0.45, 0.54
Area of a rectangle: 15 cm × 6 cm.
90 cm2
If 5 cats catch 5 mice in 5 minutes, how long will 100 cats take to catch 100 mice?
5 minutes
A number is divisible by 9 if the sum of its digits is divisible by what number?
9
Order these from least to greatest: 2/5, 3/4, 5/8
2/5, 5/8, 3/4
A book costs 24 AED. You get a 25% discount. What’s the price?
18 AED
A circle has radius 7 cm. Approximate area using π = 3.14.
153.86 cm²
I am a 3-digit number. My tens digit is 5 more than my ones digit. My hundreds digit is 8 less than my tens digit. What number am I?
194
What is the smallest prime number greater than 50?
53
A pizza is cut into 12 slices. You eat 1/3. How many slices are left?
8 slices
Multiply: 0.125 × 0.4 = ?
0.05
Name the 3D shape with 6 square faces.
cube
The more you take away from me, the bigger I get. What am I?
A hole