递等式计算。(能巧算的要巧算)
(6.56×4.6-8.2-1.8)÷0.01 6.8÷(25×0.34) 10.1×8.8
3.5×6.5+6.5×6.5 78.6-1.8×(7-0.5) 9.2÷2.5
(6.56×4.6-8.2-1.8)÷0.01 6.8÷(25×0.34) 10.1×8.8
3.5×6.5+6.5×6.5 78.6-1.8×(7-0.5) 9.2÷2.5
递等式计算,能巧算的要巧算。
4.78+0.4+1.6 10.38-3.3-6.7 5.02-2.8+1.98
93.45-8.6-3.45 41+8.68+49+1.32 3.9+0.1-3.9+0.1
4.78+0.4+1.6 10.38-3.3-6.7 5.02-2.8+1.98
93.45-8.6-3.45 41+8.68+49+1.32 3.9+0.1-3.9+0.1
计算下面各题,能简算的要简算.
0.4×99+0.4 78÷0.25÷0.4
3.6×4-2.5×3.6 1.47×8.5+0.15×14.7
0.4×99+0.4 78÷0.25÷0.4
3.6×4-2.5×3.6 1.47×8.5+0.15×14.7
递等式计算,能巧算的要巧算。
21.44﹣14.98+33.56﹣2.02
9400÷25÷4
5.2×49﹣5.2+52×5.2
(280+720)÷125×8
(1090﹣67×12)÷26
52×[(1018﹣986)÷16]
21.44﹣14.98+33.56﹣2.02
9400÷25÷4
5.2×49﹣5.2+52×5.2
(280+720)÷125×8
(1090﹣67×12)÷26
52×[(1018﹣986)÷16]