Finding the sum of odd numbers
Find the sum of even numbers
Regrouping


Quick Think

"Smartie Pants"
100
54
What is the sum of 37+15=
100
34
What is the sum of 22+12=
100
70
What is the sum of 52+18
100
14
What is 7+7=
100
18
What is 10+10-2
200
24
What is the sum of 13+11=
200
52
What is the sum of 40+12
200
40
What is the sum of 29+11
200
32
What is 22+10=
200
20
What is 11+11-2=
300
26
What is the sum of 17+9=
300
68
What is the sum of 54+14
300
80
What is the sum of 67+13=
300
55
What is 40+15
300
13
What is 15-5+3
400
28
What is the sum of 21+7=
400
100
What is the sum of 88+12
400
117
What is the sum of 93+17=
400
44
What is 33+11=
400
22
What is 20-2+4=
500
36
What is the sum of 31+5
500
106
What is the sum of 96+ 10=
500
100
What is the sum of 76+24
500
76
What is 56+20=
500
39
What is 36-3+6
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