Chapter 4 Review

Break apart the ones to make a ten. Then add to find the sum.

15+7=

• 20+7=27

• 15+5=20

• 20+2=22

• 15+10=25

Make one addend the next tens number. Complete the new addition sentence. Draw the problem.

37+25=?

• 40+22=62

• 37+30=67

• 40+25=65

Make one addend the next tens number. Complete the new addition sentence. Draw the problem.

18+13=

• 18+15=33

• 20+11=31

• 20+13=33

Break apart 54 into tens and ones.

• 5+4

• 50+40

• 50+4

• 5+40

Break apart the addends to find the sum.

35

+54

• 3+5

  5+4

  8+9=17

• 30+5

  50+4

  80+9=89

• 30+50

  50+40

  80+90=170

Draw to show regrouping. Write how many tens and ones are in the sum.

Add 47 and 15.

• 60 tens and 2 ones

• 6 tens and 20 ones

• 60 tens and 20 ones

• 6 tens and 2 ones

Draw to show regrouping. Write the sum.

Add 26 and 38.

• 640

• 64

• 6

• 4

Draw to show if you regroup. How many tens and ones are in the sum. Find the sum.

Add 79 and 6.

• 8 tens and 5 ones

  85

• 80 tens and 5 ones

  805

• 8 tens and 5 ones

  13

• 8 tens and 50 ones

  130

Draw a quick picture to help you solve. Find the sum.

• 36

• 513

• 63

• 53

Draw a quick picture to help you solve. Find the sum.

• 812

• 82

• 92

• 912