Topic 5 Review

Break Apart

100

25-10=?

25-10=15

25-5=20

20-5=15

200

38-9=?

38-9=29

38-8=30

30-1=29

300

47-8=?

47-8=39

47-7=40

40-1=39

400

56-8=?

56-8=48

56-6=50

50-2=48

500

64-9=?

64-9=55

64-4=60

60-5=55

Count On

100

Using a number line count on to solve the problem:

57-29=?

28

200

Using a number line count on to solve the problem:

56-35=?

21

300

Using a number line count on to solve the problem:

63-30=?

33

400

Using a number line count on to solve the problem:

85-43=?

42

500

Using a number line count on to solve the problem:

83-58=?

25

Count Back

100

Using a number line count back to solve the problem:

56-24=?

32

200

Using a number line count back to solve the problem: 50-25=?

25

300

Using a number line count back to solve the problem:

64-36=?

28

400

Using a number line count back to solve the problem:

78-32=?

46

500

Using a number line count back to solve the problem:

80-36=?

44

Word Problems

100

Jill went to the farm and saw 15 pigs and 6 goats. How many more pigs than goats did Jill see?

15-6=9

200

20 students line up in the lunch line. 8 students go sit down with their lunch. How many students are left in the lunch line?

20-8=12

300

6 dogs are at the park. 

10 more join them. 

Then 4 dogs leave the park. 

How many dogs are left at the park?

6+10=16

16-4=12

12 dogs are left

400

25 students take out their take home folders. 

5 more students join them.

Then 10 students pack up. 

How many students are left?

25+5=30

30-10=20

20 students are left

500

50 students are standing at dismissal. 

25 more students join them.

Then 15 students leave. 

How many students are left?

50+25=75

75-15=60

60 students are left