Question

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Answer 1

Răspuns:

3 (6+7+9+10):4 =32:4=8

Answer 2

4.  140,142,144,146,148,240,242,244,246,248,340,342,344,346,348,440,442 etc. toate numerele care se sfarsesc cu 0,2,4,6,8.

5.  2⇔2x2+10=14

6.  2x2x2x2=4x2x2=8x2=16

7.  1,2,7,14

8.  2

1.  a x (b+c)=7x21=147

2.  18x5=90

3.  a)  (6+7+9+10):4=(13+9+10):4=(22+10):4=32:4=8

b)  10:2=5

12-10=2