Готовимся к устному счёту.
198+8 = 41 – 12
= 165 – 112 = 115 + 9 =
280 : 7 = 26 : 2 = 36 : 3= 33 : 3 =
300 х 2 = 19 + 106 = 200 х 3 = 17 + 15 =
344 + 112 = 67 + 15= 85 + 15 = 38 + 24 =
711 – 314= 48 : 6 = 56 – 27 = 72 : 9 =
6 х 7 = 0 : 17 = 5 х 8 = 0 : 12 =
213: 213 = 350 : 7 = 12 х 4 = 810 : 9 =
480 : 4 = 9 х 8 –
30 = 660 : 2= 7 х 5 – 30=
| 45 + 21 = | 17 + 32 = | 38 + 45 = | 12 + 78 = |
| 14 + 34 = | 22 + 58 = | 43 + 46 = | 65 + 22 = |
| 21 + 45 = | 11 + 93 = | 67 + 38 = | 34 + 59 = |
4. Выполни вычитания двузначных чисел устно:
| 45 - 24 = | 76 - 26 = | 35 - 18 = | 94 - 39 = |
| 82 - 47 = | 72 - 44 = | 84 - 58 = | 92 - 78 = |
| 77 - 68 = | 85 - 35 = | 77 - 63 = | 89 - 42 = |
_______________________________________________________________________________
| 93 - 34 = | 74 - 66 = | 96 - 78 = | 69 - 19 = |
| 62 - 37 = | 59 - 44 = | 78 - 38 = | 79 - 58 = |
| 99 - 78 = | 65 - 65 = | 87 - 43 = | 81 - 32 = |
| 45 - 24 = | 76 - 26 = | 35 - 18 = | 94 - 39 = |
| 82 - 47 = | 72 - 44 = | 84 - 58 = | 92 - 78 = |
| 77 - 68 = | 85 - 35 = | 77 - 63 = | 89 - 42 = |
| 15 + 37 = | 84 + 66 = | 35 + 58 = | 29 + 63 = |
| 74 + 12 = | 59 + 25 = | 48 + 33 = | 26 + 43 = |
| 57 + 14 = | 25 + 73 = | 87 + 6 = | 64 + 19 = |
| 45 + 21 = | 17 + 32 = | 38 + 45 = | 12 + 78 = |
| 14 + 34 = | 22 + 58 = | 43 + 46 = | 65 + 22 = |
| 21 + 45 = | 11 + 93 = | 67 + 38 = | 34 + 59 = |
5 • 3 =
7 • 5 =
9 • 3 =
8 • 6 =
4 • 4 =
8 • 9 =
7 • 7 =
2 • 9 =
5 • 2 =
4 • 3 =
2 • 6 =
6 • 7 =
|
2 • 8 =
9 • 4 =
5 • 8 =
6 • 6 =
8 • 4 =
7 • 9 =
7 • 3 =
4 • 2 =
6 • 9 =
5 • 5 =
3 • 6 =
9 • 9 =
|
 6 • 4 =
8 • 3 =
4 • 7 =
9 • 5 =
 7 • 8
=
3 • 3 =
6 • 5 =
8 • 8 =
2 • 3 =
 5 • 4 =
2 • 7 =
2 • 2 =
|
3 • 3 =
9 • 8 =
5 • 6 =
9 • 9 =
5 • 7 =
3 • 8 =
3 • 7 =
6 • 2 =
4 • 9 =
6 • 3 =
8 • 2 =
8 • 8 =
|
3 • 2 =
3 • 4 =
4 • 8 =
2 • 2 =
9 • 6 =
8 • 5 =
3 • 5 =
7 • 6 =
4 • 5 =
3 • 9 =
7 • 7 =
6 • 8 =
|
 4 • 6 =
7 • 2 =
9 • 7 =
4 • 4 =
 5 • 9
=
2 • 4 =
6 • 6 =
9 • 2 =
2 • 5 =
 5 • 5 =
8 • 7 =
7 • 4 =
|
69 + 1 = 69 – 1 = 670 + 30=
54 + 18 = 67 – 16 = 826+117
60 : 10 = 95 – 17 = 4 х 24 =
13 х 6 = 540 + 410=
6 х 7 = 84 : 4= 42 : 7=
91 + 1 = 91 – 1 = 160 + 40 =
62 + 29= 99 – 67 = 35 : 1 =
80 : 10= 63 – 15= 15 х 3 =
16 х 5 = 420 + 170 =
62 + 19= 62 -19= 34 + 17= 34 – 17= 420 +170= 800 -540= 540 +410= 900- 650=
291 + 1= 291 – 1= 359 + 1= 359 – 1=
240: 6 = 640 : 8=
150 х3= 16 х5= 120 х 4= 24 х3=
8 х 0 = 72: 6 = 9 х 0
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