Adding Quick Tens

Hans puts 24 books on a shelf.

He puts 40 books on another shelf.

How many books in all?

• 64

• 60

• 44

• 42

Raul swam for 36 minutes.

Then he swam for 10 more minutes.

How many minutes did Raul swim in all?

Use the hundred chart to solve.

• 56

• 46

• 27

• 26

Use the hundred chart to add tens.

54 + 40 =

• 14

• 16

• 94

• 96

Samuel had 13 ants in his ant farm.

He got 30 more ants.

How many ants does he have now?

Use the hundred chart to help you find the answer.

• 17

• 20

• 43

• 53

Add tens to complete the number sentence.  
4 tens + 2 tens = ?

• 2 tens 

• 6 tens

• 2

• 8

What is 10 MORE than 85?

• 75

• 65

• 95

• 75

What is 10 MORE than 100?

• 81

• 91

• 110

• 101

What is 10 MORE than 43?

• 53

• 57

• 23

• 5

Ten more than 53

• 43

• 63

• 73

What number is 10 MORE than 11?

• 31

• 23

• 21

• 1