Question

calculeaza in doua moduri.(5+2)×8;6×(3+4);(2+7)×9;10×(3+5);(8-3)×4;(2×(9-3);

Answer 1

(2+7)×9= 9×9=81
(2×9)+(7×9)=18+63=81

(5×2)×8=7×8=56
(5×8)+(2×8)=40+16=56

6×(3+4)=6×7=42
(6×3)+(6×4)=18+24=42

10×(3+5)=10×8=80
(10×3)+(10×5)=30+50=80

(8-3)×4= 5×4=20
(8×4)-(3×4)=32-12=20

2×(9-3)=2×6=12
(2×9)-(2×3)=18-6=12

Answer 2

(5+2)x8 = 7 x 8 = 56

(5x8)+(2x8)=40+16=56

6x(3+4)=6 x 7 = 42

(6x3)+(6x4) = 18 + 24 = 42

(2+7)x9= 9 x 9 = 81

(2x9)+(7x9) = 18 + 63 = 81

10x(3+5) = 10 x 8 = 80

(10x3)+(10x5)=30+50=80

(8-3)x4 = 5x4=20

(8x4)-(3x4)= 32-12=20

2x(9-3) = 2x6 = 12

(2x9)-(2x3) = 18 - 6 = 12