5.6x98 56x0.2用简便计算怎么做脱式计算？

5.6x98 56x0.2用简便计算怎么做脱式计算?
原式＝5.6×98+5.6×2 ＝5.6×（98+2）＝5.6×100 ＝560

5.6x98+56x0.2的简便计算?
=560 或者这样算:5.6×98+56×0.2 =56×9.8+56×0.2 =56×（9.8+0.2）=56×10 =560

求五年级上册脱式计算题50道 一定要过程
(45.9-32.7)÷8÷0.125 3.14×0.68+31.4×0.032 5.6÷1.25÷0.8÷2.5÷0.4 7.2×0.2+2.4×1.4 8.9×1.01 7.74×(2.8-1.3)+1.5×2.26 3.9×2.7+3.9×7.3 18-1.8÷0.125÷0.8 12.7×9.9+1.27 21×(9.3-3.7)-5.6 15.02-6.8-1.02 5.4×11-5.4 2.3×16+2.3×23+2.3 9.43-(6.28-1.57) 3.65×4.7-36.5×0...