Revision (7-1) : (8-4)

Lila saw 18 birds on her way to school. She saw 25 on her way home. How many birds did Lila see in all?

• 18 + 25 = 43

• 43 + 18 = 61

• 25 - 18 = 7

• 18 - 7 = 11

A squirrel collected 45 nuts. He buried 27 of the nuts. How many nuts are not buried?

• 8

• 18

• 28

• 38

Juan has 28 letters from his friends. Mary-Beth has 18 letters from her friends. How many letters are there in all?

• 36

• 38

• 42

• 46

There are 15 more apple trees than cherry trees at the farm. There are 66 apple trees at the farm. How many cherry trees are at the farm?

• 50

• 51

• 52

• 53

The cost of a first-class postage stamp in 1995 is shown by the following coins. Count on to find the total amount.

• 50¢

• 65¢

• 55¢

• 75¢

The cost of a first-class postage stamp in 1991 is shown by the following coins. What is the total amount?

• 33¢

• 31¢

• 29¢

• 28¢

The dollar bills show the total cost of a bike. How much does the bike cost?

• $35

• $45

• $55

• $65

What number goes in the blank? 50 + 10 + 10 = __ + 40

• 50

• 30

• 20

• 10

What is the missing number? 20 + 25 + 5 = __ + 30

• 20

• 25

• 10

• 15

What is the missing number? 29 + 10 = __ + 35

• 4

• 3

• 6

• 5