Mental Math Addition/Subtraction Flashcards
1
Q
1,500-500=
A
1,000
2
Q
2,000 + 63=
A
2,063
3
Q
55+ 12=
A
67
4
Q
800- 500=
A
300
5
Q
87-10=
A
77
6
Q
890+ 15=
A
905
7
Q
678+ 23
A
701
8
Q
44+ 55+ 66=
A
110 + 55= 165
9
Q
700-50=
A
650
10
Q
100-50=
A
50
11
Q
430-30=
A
400
12
Q
4,500- 4,000=
A
500
13
Q
82+ 82=
A
164
14
Q
462+ 18=
A
480
15
Q
533+ 421=
A
954
16
Q
999+ 1=
A
1,000
17
Q
988+ 12=
A
1,000
18
Q
455-5=
A
450
19
Q
250+ 350=
A
600
20
Q
730+ 770=
A
1,500
21
Q
445+ 55+ 50=
A
550
22
Q
89 + 11=
A
100
23
Q
9-5=
A
4
24
Q
65+ 35=
A
100
25
Q
80- 20=
A
60
