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МатематикаВопрос:
1. 4 ⋅ (75 − 113) 2. 8 ⋅ (41 − 84). 3. 3 ⋅ (88 − 125) 4. 9 ⋅ (29 − 73) 5. 6 ⋅ (57 − 94) 6. 7 ⋅ (32 − 67) 7. −4 ⋅ (147 – 69) 8. −3 ⋅ (136 – 58) 9. −2 ⋅ (125 - 45) 10. -5 ⋅ (44 + 96) 11. -4 ⋅ (81 + 39) 12. -3 ⋅ (72 + 48) 13. -21 + 56:7 14. 10-85:5 15. -13⋅6+53 16. 12⋅4-76 17. 35-13⋅(-5) 18. 27-12⋅(-4) 19. -93 - 13⋅(-6) 20. 29-4⋅19
Ответ:
Краткое пояснение: Решаем примеры, выполняя действия в скобках, умножение и деление перед сложением и вычитанием.
1. 4 ⋅ (75 − 113) = 4 ⋅ (-38) = -152
2.8 ⋅ (41 − 84) = 8 ⋅ (-43) = -344
3.3 ⋅ (88 − 125) = 3 ⋅ (-37) = -111
4.9 ⋅ (29 − 73) = 9 ⋅ (-44) = -396
5.6 ⋅ (57 − 94) = 6 ⋅ (-37) = -222
6.7 ⋅ (32 − 67) = 7 ⋅ (-35) = -245
7.-4 ⋅ (147 – 69) = -4 ⋅ (78) = -312
8.-3 ⋅ (136 – 58) = -3 ⋅ (78) = -234
9.-2 ⋅ (125 - 45) = -2 ⋅ (80) = -160
10.-5 ⋅ (44 + 96) = -5 ⋅ (140) = -700
11.-4 ⋅ (81 + 39) = -4 ⋅ (120) = -480
12.-3 ⋅ (72 + 48) = -3 ⋅ (120) = -360
13.-21 + 56 : 7 = -21 + 8 = -13
14.10 - 85 : 5 = 10 - 17 = -7
15.-13 ⋅ 6 + 53 = -78 + 53 = -25
16.12 ⋅ 4 - 76 = 48 - 76 = -28
17.35 - 13 ⋅ (-5) = 35 + 65 = 100
18.27 - 12 ⋅ (-4) = 27 + 48 = 75
19.-93 - 13 ⋅ (-6) = -93 + 78 = -15
20.29 - 4 ⋅ 19 = 29 - 76 = -47
Ответ: -152, -344, -111, -396, -222, -245, -312, -234, -160, -700, -480, -360, -13, -7, -25, -28, 100, 75, -15, -47
