3.4+7+1.5用简便方法计算

尚薛娴25573.4*7*1.5怎么简便计算呢? -
朱桦狱15342864507 ______ =3.4÷2*7*3=1.7*21=1.7*20+1.7=34+1.7=35.7简便计算方式方法1.补数凑整法对于算式中接近整十、整百……的数,通过转化使其变成整十、整百……的数,加或减一个数的形式,可使计算简便.例如:536-198=536_(200_2)=536_200+2=...

尚薛娴25573.4X7x1.5等于多少用简便方法 -
朱桦狱15342864507 ______ 3.4x7x1.5 =3.4x(7x1.5) =3.4x10.5 =3.4x(10+0.5) =3.4x10+3.4x0.5 =34+1.7 =35.7

尚薛娴25573.4*7*1.5的简便计算是什么 -
朱桦狱15342864507 ______ 3.4*7*1.5 =3.4*1.5*7 =5.1*7 =35.7

尚薛娴2557三点四乘七乘一五有没有简便计算 -
朱桦狱15342864507 ______ 3.4*7*1.5 =(3.4÷2)*7*(1.5*2) =1.7*7*3 =11.9*3 =35.7 只能这样了

尚薛娴25573.4x7x1.5用简便方法计算 -
朱桦狱15342864507 ______ 3.4*1.5*7

尚薛娴25573.4*7*1.5简便算法 -
朱桦狱15342864507 ______ 3.4*7*1.5=3.4*(1+0.5)*7=(3.4*1+3.4*0.5)*7=(3.4+1.7)*7=5.1*7=35.7

尚薛娴25573.4*7*1.5的简便运算 -
朱桦狱15342864507 ______ 3.4*7*1.5的简便运算 3.4*7*1.5 =23.8*1.5 =35.7

尚薛娴25573.4*7*1.5=(要简便运算, -
朱桦狱15342864507 ______[答案] 3.4*7*1.5 =3.4*10.5 =3.4*(10+0.5) =34+1.7 =35.7

尚薛娴25573.4*7*1.5的简便算法 -
朱桦狱15342864507 ______ 3.4 X 7 X 1.5= 1.7 X 2 X 1.5 X 7= 1.7 X 3 X 7= 5.1 X 7= 35.7 满意请采纳.

尚薛娴25573.4x7x1.5的简便方法 -
朱桦狱15342864507 ______ 3.4x7x1.5=3.4*10.5=3.4*10+3.4*0.5=34+1.7=35.7 满意采纳