能简算的要简算0|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
（1） 7.2÷1.2 +0.80|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
2}6f(e1E,I9b/@+b0~(v3U0|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
=-R5s3s'{*Z0R*y4}-N4a-n0|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
（2）（10.8 -1.26 -0.74）×2.70|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
0|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
=8.8×2.7">;C3u,c1p*D)|.P'?7c0|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
='H3`5p;l0|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
（3）12.5×4.6×0.80|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
算式：提示)[:F6\6f+C*S9i0|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
=-F+j(y(W2i5A3I0|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
（4）（68.4×0.73+0.27×68.4）÷0.010|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
算式：提示'x2d8T-\.H2b:{5t(\0|-_.q.O0m'S9R:o/u6?.K/y2i3`1A
=:t;o,t:V-d/v0|-_.q.O0m'S9R:o/u6?.K/y2i3`1A