8×(0.4 12.5)×5简便计算?

2025-01-06 09:38:04
推荐回答(3个)
回答1:

8x(0.4+12.5)ⅹ5
=8x0.4X5+8乂12.5X5
=8x(0.4X5)+(8X12.5)x5
=8ⅹ2十100ⅹ5
=16+500
=516

回答2:

8×(0.4+12.5)×5
=8×0.4×5+8×12.5×5
=8×2+100×5
=16+500
=516

回答3:

8*(0.4+12.5)*5
=40*(0.4+12.5)
=40*0.4+40*12.5
=16+500
=516