Word Problems
Add and Subtract Tens
Strategies
Related Facts
Practice Adding / Subtracting
100

Weston picked 32 apples. Zayda picked 22. How many apples did they pick in all?

32 + 22 = 54

100

20 + 40 = _____


____ tens

20 + 40 = 60

6 tens

100

Make a ten:

17 + 14 = _____


*Draw to show your work


17 + 14 can be changed to 20 +11 by making a ten. 

20 + 11 = 31

so

17 + 14 = 31

100

33 + 40 = 73

73 - ___ = 33

73 - 40 = 33

100

17 + 15 =

32

200

Mia has 18 pencils. Graham has 14 more pencils than Mia. How many pencils does Graham have?

18 + 14 = 32

200

70 + 20 ____


____ tens

70 + 20 = 90


9 tens

200

Add using place value (tens and ones).


32 + 35 = _____

____ tens + ___ ones

32 + 35 = 67

6 tens + 7 ones

200

30 + 10 = ____


40 - 10 = _____

30 + 10 = 40


40 - 10 = 30

200

80 + 6 = ___

86

300

Avyan did 30 jumping jacks. The next day he did 20 more. The day after that, he did another 30. How many jumping jacks did he do in all?

30 + 20 + 30 = 80


*3 tens + 2 tens + 3 tens could help

300

30 - 20 = ____


___ ten

30 - 20  = 10


1 ten

300

37 + 5 = _____

You could count forward using a hundred chart, make a 10, or add tens and ones.


37 + 5 = 42

300

33 + 20 = ____


____ - 20 = 33

33 + 20 = 53


53 - 20 = 33

300

44 + 44 = 

88

400

Liam had 36 Pokemon cards. Then he bought 12 more. He decided to give 12 to Jonah. How many cards does Liam have now?

36


36 + 12 - 12 = 36

400

80 - 50 = ____


____ tens

80 - 50 = 30


3 tens

400

37 + 50 = ____

You could add tens and ones, or use a hundred chart to add the tens in.


37 + 50 = 87

400

80 + 20 = ____



100 - 20 = 

80 + 20 = 100


100 - 20 = 80

400

72 - 30 = ___

42

500

Addie has 12 books. Miles has 4 more books than Addie. How many books do they have in all?

28 books


Step 1: 12 + 4 = 16  --This tells us how many Miles has.

Step 2: 12 + 16 = 28  --This tells how many Addie + Miles have.

500

90 + 20 = ____


___ tens

90 + 20 = 110


11 tens

500

75 + 17 = ____

You could make a ten, or add tens and ones.


75 + 17 = 92

500

If you do 40 + 50 = 90, what related fact can you solve to get back to where you started?

90 - 50 = 40

500

58 - 7 = ___

51