Review

27+56=

• 83

• 73

• 72

• 81

35+48=

• 83

• 73

• 84

• 75

Use your favorite strategy to solve the following problem?
54+28

• 78

• 72

• 82

• 80

  52
+39

• 90

• 91

• 81

• 92

71+22=?

• 100

• 80

• 93

• 51

 $42+10=$  

• 32

• 52

• 62

• 50

 $34+24=$  

• 64

• 85

• 48

• 58

There are four birds in a tree. Two birds fly away. Which equation can be used to find out how many birds are still in the tree?

• 4 - 2 = 2

• 4 + 2 = 6

• 3 + 2 =5

• 5 -2 = 3

James has 21 children in her class. Paul's class has 15 children. How many children are in James and Paul's class in all?

21+15=□

• 36

• 37

• 46

• 53

A pizza was cut into 8 pieces. Paul's family ate 6 pieces. How many pieces were left?

• 2

• 6

• 5

• 3