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Մաթեմատիկա25.10.2018

Վարժ 226

(ա)

99999+55=10054

10054-55=99999

25+7897=7922

7922-25==7922

բ)99999+555=10054

10054-555=99999

250+78970=79220

79220-25=78970

227)

ա)99x(909-555)+7890:(3218-3188)+78×90=42329

1)909-555=354

2)3218-3188=30

3)99×354=35046

4)7890:30=263

5)78×90=7020

6)35046+263=35209

7)35209+7020=42329

բ) 25x(5316-4897)-(79×22-1188):50=10464

227)

Ա)

3457+178=3535

3535-178=3357

2358+124=2482

2482-124=2385

 

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