2-digit plus 1-digit numbers

Bruce Akitt
Flashcards by Bruce Akitt, updated more than 1 year ago
Bruce Akitt
Created by Bruce Akitt about 7 years ago
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Description

Multi-digit multiplication often requires addition of a carry after having multiplied the elements of the multiplication algorithm. These flashcards will practice completing this addition mentally and effortlessly.

Resource summary

Question Answer
81 + 9 = ___ 80 + 10 = = _90_
81 + 6 =___ 81 + 6 =_87_
81 + ___ = 88 81 +_7_ = 88
72 + 9 = ___ 72+9 = 70+10+1 = _81_
72 + ___ = 81 72 + _9_ = 81
72 + 5 = ___ 72+5 = 70 + 7 = _77_
72 + ___ = 78 72 + _6_ =78
63 + 9 = ___ 60+12 = 60+10+2 = _72_
63 + ___ = 71 63 + _8_ =71
63 + 4 = ___ 63+4 = 60+7 = _67_
63 + ___ = 68 63 + _5_ = 68
54 + 8 = ___ 54+8 = 50+10+2 = _62_
54 + ___ = 61 54 + _7_ = 61
54 + 4 = ___ 54 + 4 = 50 + 8 = _58_
54 + ___ = 57 54 + _3_ = 57
45 + 9 = ___ 45+9 = 40+10+4 = _54_
45 + ___ = 52 45 + _7_ = 52
45 + 4 = ___ 45 + 4 = 40 + 9 = _49_
45 + ___ = 48 45 + _3_ = 48
36 + 7 = ___ 36+7 = 30+10+3 = _43_
36 + ___ = 45 36 + _9_ = 45
36 + 2 = ___ 36 + 2 = _38_
36 + ___ = 39 36 + _3_ = 39
27 + 9 = ___ 27+9 = 20+10+6 = _36_
27 + ___ = 35 27 + _8_ = 35
27 + ___ = 30 27 + _3_ = 30
18 + 5 = ___ 18+5 = 10+10+3 = _23_
18 + ___ = 27 18 + _9_ = 27
18 + 2 = ___ 18 + 2 = 10 + 10= _20_
64 + 9 = ___ 64+9 = 60+10+3 = _73_
64 + ___ = 72 64 + _8_ = 72
64 + 3 = ___ 64 + 3 = 60 + 7 = _67_
64 + ___ = 68 64 + _4_ = 68
56 + 9 = ___ 56+9 = 50+10+5 =_65_
56 + ___ = 64 56 + _8_ =64
56 + 2 = ___ 56 + 2 = 50 + 8 = _58_
56 + ___ = 59 56 + _3_ = 59
48 + 5 = ___ 48+5 = 40+10+3 = _53_
48 + ___ = 57 48 + _9_ = 57
48 + ___ = 50 48 + _2_ = 50
48 + 1 = ___ 48 + 1 = 40 +9 = _49_
40 + 9 = ___ 40 + 9 = _49_
40 + ___ = 47 40 + _7_ = 47
32 + 9 = ___ 32+9 = 30+10+1 = _41_
32 + ___ = 40 32 + _8_ = 40
32 + 3 = ___ 32 + 3 = 30 + 5 = _35_
32 + ___ = 39 32 + _7_ = 39
24 + 9 = ___ 24+9 = 20+10+3 = _33_
24 + ___ = 32 24 + _8_ = 32
24 + 5 = ___ 24 + 5 = 20 + 9 = _29_
24 + ___ = 27 24 + _3_ = 27
16 + 9 = ___ 16+9 = 10+10+5 = _25_
16 + ___ = 24 16 + _8_ = 24
16 + 3 = ___ 16 + 3 = 10 + 9 = _19_
16 + ___ = 18 16 + _2_ = 18
49 + 8 = ___ 49+8 = 40+10+7 = _57_
49 + ___ = 53 49 + _4_ = 53
49 + 1 = ___ 49 + 1 = _50_
42 + 9 = ___ 42 + 9 = _51_
42 + ___ = 50 42 + _8_ = 50
42 + 3 = ___ 42 + 3 = 40 + 5 = _45_
42 + ___ = 48 42 + _6_ = 48
35 + 7 = ___ 35+7 = 30+10+2 = _42_
35 + ___ = 43 35 + _8_ = 43
35 + 2 = ___ 35 + 2 = 30 + 7 _37_
35 + ___ = 39 35 + _4_ = 39
28 + 5 = ___ 28+5 = 20+10+5 = _33_
28 + ___ = 36 28 + _8_ = 36
28 + 1 = ___ 28 + 1 = 20 + 9 = _29_
28 + ___ = 30 28 + _2_ = 30
21 + 9 = ___ 21 + 9 = 20 + 10 = _30_
21 + 6 = ___ 21+6 = 20 + 7 = _27_
21 + ___ = 30 21 + _9_ = 30
21 + ___ = 26 21 + _5_ = 26
14 + 8 = ___ 14+8 = 10+10+2 = _22_
14 + ___ = 21 14 + _7_ = 21
14 + 5 = ___ 14 + 5 = 10 + 9 = _19_
14 + ___ = 17 14 + _3_ = 17
36 + 8 = ___ 36+8= 30+10+4 = _44_
36 + ___ = 42 36 + _6_ = 42
36 + 2 = ___ 36+2 = 30 + 8 = _38_
36 + ___ = 39 36 + _3_ = 39
30 + 8 = ___ 30 + 8 = _38_
30 + ___ = 39 30 + _9_ = 39
24 + 7 = ___ 24+7 = 20+10+7 = _31_
24 + ___ = 33 24 + _9_ = 33
24 + 5 = ___ 24+5= 20+9 = _29_
24 + ___ = 27 24 + _3_ = 27
12 + 9 = ___ 12+9 = 10+10+1 = _21_
12 + ___ = 20 12 + _8_ = 20
12 + 3 = ___ 12+3 = 10 + 5 = _15_
12 + ___ = 19 12 + _7_ = 19
26 + 6 = ___ 26+6 = 20+10+2 = _31_
25 + ___ = 34 25 + _9_ = 34
25 + 4 = ___ 25+4 = 20 + 9 = = _29_
25 + ___ = 30 25 + _5_ = 30
16 + 7 = ___ 16+7 = 10+10+3 = _23_
16 + ___ = 24 16 + _8_ = 24
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