解:0.24x12.5x0.5x14等于(21 )
∵已知需求出0.24x12.5x0.5x14等于多少
∴0.24 x 12.5 x 0.5 x 14
= 24/100 × (12×10+5)/10 × 5/10 × 14
= 6/25 × 125/10 × 1/2 × 14
= 6/25 × 25/2 × 1/2 × 14
= 3 × 1/2 × 14
= 3/2 × 14
= 21
答:0.24x12.5x0.5x14等于21
原式=0.03×8×12.5×0.5×14
=0.03×(8×12.5)×(0.5×14)
=0.03×100×7
=21
0.24×12.5×0.5×14=0.01×24×0.1×125×0.1×5×2×7=(0.01×0.1×0.1×5×2)×4×6×25×5×7=0.001×(4×25)×(5×6)×7=(0.001×100)×(30×7)=0.1×210=21