Number of Operations and Base 10

Front

What is the sum of 44 and 40?

Back

84

Front

What is 11 + 7?

Back

18

Front

What is ten less than 19?

Back

9

Front

How many tens and ones are in the number 70?

Back

70 = 7 tens 0 ones

Front

What is 80 - 30?

Back

50

Front

What does the term 'base 10' mean?

Back

Base 10 means using ten digits (0-9) to represent numbers.

Front

What is the value of the digit 5 in the number 57?

Back

The value of 5 is 50 because it is in the tens place.

Front

What is the value of the digit 3 in the number 23?

Back

The value of 3 is 3 because it is in the ones place.

Front

What is the result of 20 + 30?

Back

50

Front

What is the result of 50 - 20?

Back

30