Question

Verivica egalatile.

2×5+7=3×4+9
70-6×4=8×3+21

6×7(76-7×4)+8×9=
(130-9×9+5×4)-(7×5+3×6)=
(6×8)-(43-6×4)=
100(6×6+3×8)

Answer 1

2×5+7=3×4+9 Fals
10+7<12+9
17<21

70-6×4=8×3+21 Fals
70-24>24+21
    46>45

6×7(76-7×4)+8×9=2088    IAR DACA INAINTEA parantezei este + avem:
=42x(76-28)+72=                       =42+(76-28)+72=
=42x48+72=                               =42+48+72=
=2016+72=                                 =162
=2088

(130-9×9+5×4)-(7×5+3×6)=16
=(130-81+20)-(35+18)=
=(49+20)-53=
=69-53=
=16

(6×8)-(43-6×4)=39
=48-(43-24)=
=48-9=
=39

100(6×6+3×8)=6000
=100x(36+24)=
=100x60=
=6000

Answer 2

2x5+7=3x4+9
10+7=12+9
17     21
70-6x4=8x3+21
70-24=24+21
46   45
6x7(76-7x4)+8x9=42(76-28)+72=42x48+72=2016+72=2088
(130-9x9+5x4)-(7x5+3x6)=(130-81+20)-(35+18)=69-53=16
(6x8)-(43-6x4)=48-(43-24)=48-19=29
100(6x6+3x8)=100x(36+24)=100x60=6000