Question

100-(24+24:4+5x3)
230-(100-100:10x7+8x7)
(40-4x8)x(50-6x7)
(90-6x7):8+(21+21:3)
(60-6x9)x(70-7x9)
(100-28):(45-36)+(3x8+5x5):7
Dau coroana.

Answer 1

1. 100-(24+6+15)=
=100-45=55

2.230-(100-10x7+56)=
=230-(100-70+56)=
=230-(30+56)= 230-86=144

3. (40-32)x(50-42)=
=8x8=64

nu mai am timp pt celelalte acum.

Answer 2

a) 100-(24+6+15)=100-45=55

b) 230-(100-10×7+56)=
=230-(100-70+56)=
=230-86=
=144

c) (40-32)×(50-42)=
=8×8=
=64

d) (90-6×7):8+(21+21:3)=
=(90-42):8+(21+7)=
=48:8+28=
=6+28=
=34

e)(60-6×9)×(70-7×9)=
=(60-54)×(70-63)=
=6×7=
=42

f)(100-28):(45-36)+(3×8+5×5):7=
=72:9+(24+25):7=
=8+49:7=
=8+7=
=15

Sper ca te.am ajutat!