Question

Scoateți factorul comun în afara parantezelor apoi calculați.
a)1)3×5+3×2
a)2)4×10-4×6
b)1)4×2+3×2
b)2)9×6-4×6
c)1)8×5+5×2
c)2)10×7-7×3
d)1)4×5+2×4
d)2)9×10-7×9
​

Answer 1

Răspuns:

a) 1) 3×5+3×2=21

3×(5+2)=21

a)2)4×10-4×6=16

4×(10-6)=16

b)1)4×2+3×2=14

2×(4+3)=14

b)2)9×6-4×6=30

6×(9-4)=30

c) 1)8×5+5×2=50

5×(8+2)=50

c)2)10×7-7×3=49

7×(10-3)=49

d)1)4×5+2×4=28

4×(5+2)=28

d)2)9×10-7×9=27

9×(10-7)=27