Addition and Subtraction of Tens

20 + ...... = 50

• 30

• 40

• 50

30 + ...... = 60

• 20

• 30

• 40

40 + ...... = 60

• 10

• 20

• 30

If you have 60 apples and you give away 20, how many do you have left?

• 40

• 30

• 10

• 80

• 50 stamps

• 30 stamps

• 20 stamps

• 10 stamps

• 41

• 51

• 61

• 71

What is 10 MORE than 43?

• 53

• 57

• 23

• 5

• 10 - 9 = 1

• 10 + 9 = 19

• 10 x 9 = 90

• 10 + 10 = 20

• 10 markers

• 20 markers

• 30 markers

• 40 markers

• 60 cents

• 40 cents

• 30 cents

• 20 cents