Question

1) 9×7+7×3 2) 10×5+5×9 3) 15×10- 8×10 4)91×17- 17×18 5)19×6+14×6 6)8×13+(8×9) 7)6×32- 6×23 8) 27×7- 7×19

Answer 1

1) 9×7+7×3 = (9+3)×7 = 12×7 = 84

2) 10×5+5×9 = (10+9)×5 = 19×5 = 95

3) 15×10-8×10 = (15-8)×10 = 7×10 = 70

4) 91×17-17×18 = (91-18)×17 = 73×17 = 1241

5) 19×6+14×6 = (19+14)×6 = 33×6 = 198

6) 8×13+(8×9) = (13+9)×8 = 22×8 = 176

7) 6×32-6×23 = (32-23)×6 = 9×6 = 54

8) 27×7-7×19 = (27-19)×7 = 8×7 = 56