Addition
26+40=
66
Solve.
68-30=
68-30=38
Bobby counts 44 acorns in his yard. He then picks up 27 acorns. Then 16 more acorns fall from the tree. How many acorns are in the yard now?
Step one
Step two
44-27=17
17+16=33
Elaine put 13 photos in an album. Ken put some more photos in the album. There are 32 photos in the album in all. How many photos did Ken add?
32-13=
19
Solve.
29+41=
70
48-18=
48-18=30
Lauren has a stamp collection. She gives Kristen 12 stamps and Ethan 15 stamps. Lauren has 22 stamps left. How many stamps did she have at the start?
Step one
Step two
12+15=27
27+22=49
Bill collects sea shells. He has 45 shells, then he finds 29 more shells. How many shells does he have now?
45+29=74
Use breaking apart to solve.
29+36=
29+36=
20+30=50
9+6=15
50+15=65
Solve using break apart.
53-38=
53-38=
30 8
5 3
50-30=20
20-5=15
73 people are on the train. At a train stop 24 people get off and 19 people get on. How many people are on the train now?
73-24= 49
49+19=68
51 people were on a train. 33 people left the train. How many people were on the train?
51-33=18
Use compensation to solve.
19+37=
19+37=
+1 -1
20+36=56
Use compensation to solve.
76-28=
76-28
+2 +2
78-30=48
Zak has a bag of cherries. He gave 18 cherries to Tim and 18 cherries to Janet. Now he has 25 cherries. How many cherries did Zak have to start with?
Step one
Step two
18+18=36
36+25=61
Shane has 62 stamps. Jake has 36 stamps. How many more stamps does Shane have?
62-36=26
Regroup.
27+13+38=
27
13
38
78
Solve with regrouping/borrowing.
84-36=
- 36
48
There are 24 peas on Kim's plate. Kim eats 15 peas. Then Kim's mother put 9 more on her plate. How many peas are on Kim's plate now?
Step one
Step two
24-15=9
9+9=18
There were 64 runners in a race last year. This year there were 37 fewer runners. How many runners were in the race this year?
64-37=27