Adding and Subtracting Two Digit and One Digit Numbers

The process of changing groups of ones to tens in adding and subtracting is called

• separating

• distributing

• regrouping

• dividing

50 - 7

• 43

• 57

• 56

• 42

67 + 7

• 73

• 74

• 72

• 60

35 + 8

• 41

• 43

• 27

• 30

Which operations would you do - In fourth grade there were 33 students at the start of the year. During the year 18 students left and 14 new students came to school. How many students were in fourth grade at the end?

• add then divide

• add then subtract

• multiply then subtract

• subtract then add

Ms. Rand had $756 in her bank account. On Monday she put $50 more into her account. On Tuesday she took out $87 to buy new boots. Which equation can be used to find the amount of money she had in her bank account after she took out money on Tuesday?

• 756 - 50 - 87 = ?

• 756 + 50 + 87 = ?

• 756 - 50 + 87 = ?

• 756 + 50 - 87 = ?

Ms. Rand had $756 in her bank account.
On Monday she put $50 more into her account. On Tuesday she took out $87 to buy new boots.
Which equation can be used to find the amount of money she had in her bank account after she took out money on Tuesday?

• 756 - 50 - 87 = ?

• 756 + 50 + 87 = ?

• 756 - 50 + 87 = ?

• 756 + 50 - 87 = ?

Which operations would you do - In fourth grade there were 33 students at the start of the year. During the year 18 students left and 14 new students came to school. How many students were in fourth grade at the end?

• add then divide

• add then subtract

• multiply then subtract

• subtract then add

The fourth grade had 318 students. Over thanksgiving break, 97 students moved away, but 31 new students moved in. How many students are in fourth grade now?

Which equation best matches the story problem?

• (318+97) + 31

• (318-97) + 31

• (318-97)-31

• (318+97)-31

76 - 8

• 84

• 85

• 67

• 68