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Уравнения

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Уравнения. 5 класс. Составила Мордовских Надежда Васильевна, Учитель математики МБОУ Сарасинской СОШ. Упрости. (925 + х) - 325= =(925 – 325) + х= =600 + х. Упрости. 619 – (219 + х)= =619 – 219 – х= =400 - х. Упрости. 1.412 – (х + 312) 2.(х + 37) – 27 3.(128 + х) – 28

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slide1

Уравнения

5 класс

Составила Мордовских Надежда Васильевна,

Учитель математики МБОУ Сарасинской СОШ

slide2
Упрости

(925 + х) - 325=

=(925 – 325) + х=

=600 + х

slide3
Упрости

619 – (219 + х)=

=619 – 219 – х=

=400 - х

slide4
Упрости

1.412 – (х + 312)

2.(х + 37) – 27

3.(128 + х) – 28

4.649 – (х + 549)

slide5
Проверь себя
  • 100 – х
  • х + 10
  • 100 + х
  • 100 - х
slide6
Реши уравнение
  • (257 – х) + 124 = 149

257 – х = 149 – 124

257 – х = 125

х = 257 – 125

х = 132

ОТВЕТ: 132

slide7
II способ

(257 – х) + 124 = 149

257 + 124 – х = 149

381 – х = 149

х = 381 – 149

х = 232

Ответ: 232

slide8
Реши

А) 165 – (х + 112) = 37

Б) 44 + (х – 85) = 105

В) 243 – (х + 83) = 112

Г) (135 + х) – 37 = 108

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