4.7×10.2 7.63×99＋7.63 6.73＋2.56＋1.44＋3.27 2.37×2.5×4 1.5×102
6.58×4.5×0.9
2.8×0.5+1.58
8×5.2+3.8×3.8+3.8
(6.7+6.7+6.7+6.7) ×2.5
9.8×25×4
2400÷16÷0.5 2.8×3.2＋3.2×7.2 3.76×0.25－0.49 0.25×4.78×4 0.65×201
32×0.25×0.125
7.4－0.15×2.8
0.008+0.92×5－1.28
7.8÷（1.3×4）
7.2×0.9＋0.01×7.2
1.2×2.5＋0.8×2.5 2.5×7.1×4 16.12×99＋16.12 5.2×0.9＋0.9 4.3×50×0.2
8.6×10.1
5.6×(12.5－8.5 ÷0.85)
[(8.1－5.6) ×0.9－1] ×0.4
8.25×4.08+0.75×4.08+4.08
4.32＋5.43＋6.68
64－2.64×0.5 26×15.7＋15.7×24 (2.275 ＋0.625)×0.28 3.94+34.3×0.2 1.2×(9.6÷2.4)÷4.8
15.17－6.8－3.2
12.75－(2.75＋6.8)
1.27＋3.9＋0.73＋16.1
12.8－4.9－5.1
6.75－（0.9＋3.75）
