Adding and Subtracting within 100

Front

What is the result of adding 25 and 4?

Back

29

Front

How do you subtract 5 from 15 using a number line?

Back

Count back 5 steps from 15.

Front

What is 56 + 22?

Back

78

Front

What is 67 + 12?

Back

79

Front

If Iker bought 12 cookies and then 42 more, how many cookies does he have in total?

Back

54

Front

What is the purpose of a number line in addition and subtraction?

Back

A number line helps visualize the process of adding or subtracting numbers.

Front

What is the sum of 30 and 20?

Back

50

Front

If you have 100 and subtract 45, what is the result?

Back

55

Front

What is the difference between 90 and 30?

Back

60

Front

How can you check your addition of 25 + 4?

Back

You can use subtraction: 29 - 4 should equal 25.