Find the Missing Number

Front

5 + ░ = 13

Back

8

Front

42 - ░ = 37

Back

5

Front

░² = 81

Back

9

Front

7░ ÷ 12 = 6

Back

2

Front

░ x 10 = 80

Back

8

Front

What is the operation to find a missing number in addition?

Back

To find a missing number in addition, subtract the known number from the total.

Front

What is the operation to find a missing number in subtraction?

Back

To find a missing number in subtraction, subtract the result from the known number.

Front

What is the operation to find a missing number in multiplication?

Back

To find a missing number in multiplication, divide the product by the known number.

Front

What is the operation to find a missing number in division?

Back

To find a missing number in division, multiply the quotient by the divisor.

Front

What is the square root of a number?

Back

The square root of a number is a value that, when multiplied by itself, gives the original number.