Mental Math Addition/Subtraction Flashcards
1
Q
100+ 375=
A
475
2
Q
700-200=
A
500
3
Q
45+ 55=
A
100
4
Q
1,800- 300=
A
1,500
5
Q
10+ 15+ 35=
A
60
6
Q
85+ 20=
A
105
7
Q
276+ 14=
A
290
8
Q
59+ 11=
A
70
9
Q
202+ 6=
A
208
10
Q
655+ 0=
A
655
11
Q
47+ 53=
A
100
12
Q
62+ 38=
A
100
13
Q
40+ 67=
A
107
14
Q
78- 33=
A
45
15
Q
11+ 33=
A
44
16
Q
56+ 34=
A
90
17
Q
47-0=
A
47
18
Q
111- 10=
A
101
19
Q
111+ 10=
A
121
20
Q
888- 100=
A
788
21
Q
1,100+ 645=
A
1,745
22
Q
310 + 89=
A
399
23
Q
1,400-400=
A
1,000
24
Q
255+ 40=
A
295
25
Q
17+ 63=
A
80
26
Q
345- 44=
A
301
27
Q
10 + 70 + 11
A
91
28
Q
58-27=
A
31
29
Q
230 + 22+ 30
A
282
30
Q
26+ 44+ 19
A
70+ 19= 89
31
Q
36+ 70=
A
106
32
Q
550+ 444=
A
994
33
Q
123+ 321
A
444
34
Q
248+ 102
A
350
35
Q
20 + 47=
A
67
36
Q
76-66=
A
10
37
Q
25+ 61+ 75=
A
161
38
Q
314- 12
A
302
39
Q
543+ 346
A
889
40
Q
1,000-600=
A
400
41
Q
235+ 502=
A
737
42
Q
212+ 191=
A
403
43
Q
229+ 334
A
563
44
Q
782- 61
A
721
45
Q
1,957- 532=
A
1,425
46
Q
757 + 9 + 33=
A
790+ 9= 799
47
Q
9 + 2+ 8+ 11+ 13+ 7=
A
50
48
Q
250- 150=
A
100
49
Q
899- 564=
A
335
50
Q
21,275- 1, 100=
A
20, 175
