Add and Subtract Tens
10 More, 10 Less
Add Tens to Any Number
Add Two-Digit and One-Digit Numbers
Word Problems
100

10+10

What is 20

100

14+10

What is is 24

100

12+20

What is 32

100
14+3

What is 17

100

Mary had 10 marbles and Jill gave her 20 more. How many does she have now?

What is 30

200

30-20

What is 10

200

33-10

What is 23


200

26+30

What is 56

200

32+6

What is 38

200

Shelley had 50 seashells but Sharon took 10 of them. How many seashells does Shelley have now?

What is 40

300

40+30

What is 70

300

What is 10 more than 65

What is 75

300

17+50

What is 67

300

46+6

What is 52

300

If I have 37 pokemon cards but then I get 40 more for my birthday, how many do I have now?

What is 77

400

20+70

What is 90

400

What is 10 less than 87

What is77

400

36+40

What is 76

400

8+57

What is 65

400

I had 56 cowtails, but Lisa gave me 5 swedish fish, and Jordan gave me 3 lollipops. How many pieces of candy do I have in all?

What is 64

500

90-60

What is 30

500

What is 10 More AND 10 Less than 91

What is 81 and 101

500
20+69

What is 89

500

9+79

What is 88

500

I had 7 boxes of jumbo crayons. Each box comes with 10 crayons. If Ryan gives me 2 more boxes plus 4 extra crayons, how many crayons will I have in all?

What is 94

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