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Mental subtraction of 2-digit numbers (SET 2)

Descrição

When dividing by a single digit number, finding the remainder often requires subtraction of two 2-digit numbers whose difference will be a number less than 10. This is best done by using addition with the remainder being the one digit number that you would add to the quotient to make the dividend. These flashcards practice this mental calculation, where the difference is between 5 and 8..
Bruce Akitt
FlashCards por Bruce Akitt, atualizado more than 1 year ago
Bruce Akitt
Criado por Bruce Akitt mais de 10 anos atrás
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Resumo de Recurso

Questão Responda
To do : 41 - 36 = ___ Think: 36 + ___ = 41 36 + _5_ = 41
To do : 35 - 30 = ___ Think: 30 + ___ = 35 30 + _5_ = 35
To do : 29 - 24 = ___ Think: 24 + ___ = 29 24 + _5_ = 29
To do : 33 - 18 = ___ Think: 18 + ___ = 33 18 + _5_ = 33
To do : 17 - 12 = ___ Think: 12 + ___ = 17 12 + _5_ = 17
To do : 53 - 49 = ___ Think: 49 + ___ = 53 49 + _5_ = 53
To do : 54 - 49 = ___ Think: 49 + ___ = 54 49 + _5_ = 54
To do : 47 - 42 = ___ Think: 42 + ___ = 47 42 + _5_ = 47
To do : 48 - 42 = ___ Think: 42 + ___ = 48 42 + _6_ = 48
To do : 40 - 35 = ___ Think: 35 + ___ = 40 35 + _5_ = 40
To do : 40 - 35 = ___ Think: 35 + ___ = 40 35 + _5_ = 40
To do : 41 - 35 = ___ Think: 35 + ___ = 41 35 + _6_ = 41
To do : 33 - 28 = ___ Think: 28 + ___ = 33 28 + _5_ = 33
To do : 34 - 28 = ___ Think: 28 + ___ = 34 28 + _6_ = 34
To do : 26 - 21 = ___ Think: 21 + ___ = 26 21 + _5_ = 26
To do : 27 - 21 = ___ Think: 21 + ___ = 27 21 + _6_ = 27
To do : 19 - 14 = ___ Think: 14 + ___ = 19 14 + _5_ = 19
To do : 20 - 14 = ___ Think: 14 + ___ = 20 14 + _6_ = 20
To do : 69 - 64 = ___ Think: 64 + ___ = 69 64 + _5_ = 69
To do : 70 - 64 = ___ Think: 64 + ___ = 70 64 + _6_ = 70
To do : 71 - 64 = ___ Think: 64 + ___ = 71 64 + _7_ = 71
To do : 61 - 56 = ___ Think: 56 + ___ = 61 56 + _5_ = 61
To do : 62 - 56 = ___ Think: 56 + ___ = 62 56 + +6_ = 62
To do : 63 - 56 = ___ Think: 56 + ___ = 63 56 + _7_ = 63
To do : 53 - 48 = ___ Think: 48 + ___ = 53 48 + _5_ = 53
To do : 54 - 48 = ___ Think: 48 + ___ = 54 48 + _6_ = 54
To do : 55 - 48 = ___ Think: 48 + ___ = 55 48 + _7_ = 55
To do : 45 - 40 = ___ Think: 40 + ___ = 45 40 + _5_ = 45
To do : 46 - 40 = ___ Think: 40 + ___ = 46 40 + _6_ = 46
To do : 47 - 40 = ___ Think: 40 + ___ = 47 40 + _7_ = 47
To do : 37 - 32 = ___ Think: 32 + ___ = 37 32 + _5_ = 37
To do : 38 - 32 = ___ Think: 32 + ___ = 38 32 + _6_ = 38
To do : 39 - 32 = ___ Think: 32 + ___ = 39 32 + _7_ = 39
To do : 29 - 24 = ___ Think: 24 + ___ = 29 24 + _5_ = 29
To do : 30 - 24 = ___ Think: 24 + ___ = 30 24 + _6_ = 30
To do : 30 - 24 = ___ Think: 24 + ___ = 30 24 + _6_ = 30
To do : 31 - 24 = ___ Think: 24 + ___ = 31 24 + _7_ = 31
To do : 21 - 16 = ___ Think: 16 + ___ = 21 16 + _5_ = 21
To do : 22 - 16 = ___ Think: 16 + ___ = 22 16 + _6_ = 22
To do : 23 - 16 = ___ Think: 16 + ___ = 23 16 + _7_ = 23
To do : 86 - 81 = ___ Think: 81 + ___ = 86 81 + 5 = 86
To do : 87 - 81 = ___ Think: 81 + ___ = 87 81 + _6_ = 87
To do : 88 - 81 = ___ Think: 81 + ___ = 88 81 + _7_ = 88
To do : 89 - 81 = ___ Think: 81 + ___ = 89 81 + 8 = 89
To do : 77 - 72 = ___ Think: 72 + ___ = 77 72 + _5_ = 77
To do : 78 - 72 = ___ Think: 72 + ___ = 78 72 + _6_ =78
To do : 79 - 72 = ___ Think: 72 + ___ = 79 72 + _7_ = 79
To do : 80 - 72 = ___ Think: 72 + ___ =80 72 + _8_ = 80
To do : 68 - 63 = ___ Think: 63 + ___ = 68 63 + _ 5_ = 68
To do : 69 - 63 = ___ Think: 63 + ___ = 69 63 + _6_ = 69
To do : 70 - 63 = ___ Think: 63 + ___ = 70 63 + _7_ = 70
To do : 71 - 63 = ___ Think: 63 + ___ = 71 63 + _8_ = 71
To do : 59 - 54 = ___ Think: 54 + ___ = 59 54 + _5_ = 59
To do : 60 - 54 = ___ Think: 54 + ___ = 60 54 + _6_ = 60
To do : 61 - 54 = ___ Think: 54 + ___ = 61 54 + _7_ = 61
To do : 62 - 54 = ___ Think: 54 + ___ = 62 54 + _8_ = 62
To do : 50 - 45 = ___ Think: 45 + ___ = 50 45 + _5_ = 50
To do : 51 - 45 = ___ Think: 45 + ___ = 51 45 + _6_ = 51
To do : 52 - 45 = ___ Think: 45 + ___ = 52 45 + _7_ = 52
To do : 53 - 45 = ___ Think: 45 + ___ = 53 45 + _8_ = 53
To do : 41 - 36 = ___ Think: 36 + ___ = 41 + _5_ = 41
To do : 42 - 36 = ___ Think: 36 + ___ = 42 36 + _6_ = 42
To do : 43 - 36 = ___ Think: 36 + ___ = 43 36 + _7_ = 43
To do : 44 - 36 = ___ Think: 36 + ___ = 44 36 + _8_ = 44
To do : 32 - 27 = ___ Think: 27 + ___ = 32 27 + _5_ = 32
To do : 33 - 27 = ___ Think: 27 + ___ = 33 27 + _6_ = 33
To do : 34 - 27 = ___ Think: 27 + ___ = 34 27 + _7_ = 34
To do : 35 - 27 = ___ Think: 27 + ___ = 35 27 + _8_ = 35
To do : 23 - 18 = ___ Think: 18 + ___ = 23 18 + _5_ = 23
To do : 24 - 18 = ___ Think: 18 + ___ = 24 18 + _6_ = 24
To do : 25 - 18 = ___ Think: 18 + ___ = 25 18 + _7_ = 25
To do : 26 - 18 = ___ Think: 18 + ___ = 26 18 + +8_ = 26

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