Question

1. Calculează: prin verificare a. 42:6
63:9
b. 24:2
63:3
c. 18:9 x 2 36-9:3​

Answer 1

Răspuns:

$42 \div 6 = 7 \: v7 \times 6 = 42$

$63 \div 9 = 7v \: = 7 \times 9 = 63$

$63 \div 3 = 21v \: 21 \times 3 = 63$

$18 \div 9 = 2v \: 9 \times 2 = 18$

$24 \div 2 = 12v \: 12 \times 2 = 24$

36-9:3=27:3=9 v 9×4=36

Answer 2

42:6=7;6x7=42
63:9=7;7x9=63
24:2=12;12x2=24
63:3=21;21x3=63
18:9=2 , 36x2=72 , 9:3=3
=2 x 72 - 3
=144-3=141