小学五年数学题简算
问题描述:
小学五年数学题简算
1/7 * [3/4 -(7/16 -0.125)】28*1/4 +13*0.25-0.25
88.8*94+(0.8*1/5)*8881.8*(407-3.87/ 0.9)
(0.25+3/8) / (1.75-7/8) (1-1/2+1/8) / 0.25
答
1/7 * [3/4 -(7/16 -0.125) ] 28 * 1/4 +13*0.25-0.25 =1/7 * [12/16-(7/16-2/16)] =28 * 1/4+13 * 1/4-1/4=1/7 * 1/16 * (12-7+2) =(28+13-1) * 1/488.8*94+(0.8*1/5)*888 1.8*(407-3.87 / 0.9)=888 * [9.4+(0....