Word Problems
Erin has 17 more books than Isabella.
Erin has 44 books. How many books does Isabella have?
27 books
Decompose this number
18
10 and 8
12+18=?
12+18=?
+3 -3
15+15=30
jump to 25 then add 10
35
The second grade has 19 more students than the first grade. The second grade has 68 students. How many students does the first grade have?
49 students
Compose these numbers
30 8
38
27+18=?
27+18=?
+3. -3
27+18=45
jump to 28 then add 14
42
There are 11 more adults than children at a craft fair. There are 54 adults at the craft fair. How many children are at the craft fair?
43 children
Compose these numbers
700 4 60
746
219+31=?
219+31=?
+1 -1
220+30=250
jump to 68 then add 11
79
Caleb is 17 years old. His sister is 12 years younger. How old is Caleb's sister?
5 years old
Decompose this number
1,634
1,000 600 30 and 4
52+88=?
-2. +2
52+88=?
-2. +2
50+90=140
jump to 46 then add 35
81
Dylan and his friends had some blueberries. They ate 39 blueberries. They have 21 blueberries left. How many blueberries did Dylan and his friends have at first?
60 blueberries
Decompose the sum:
39+134=?
Sum: 173.
100 70 3
82+38=?
-2. +2
ANSWER - 43
82+38=?
-2. +2
80+40=120
120-43=77
jump to 72 then add 12. Then jump back 16
68