+3.2++1.8
10-- 9.8×2.19-9.8×1.19 -
3.7×1.4×0.05 12.5×0.4×2.5×8
①
②
③
3.2×2.5×0.125 12.9×101 4.3×2.4+2.4×5.7
22×0.24+2.2×2.6
6.9×101
11.43﹣(0.67+2.43)
12.5×3.2
7.7÷2.5÷0.7
36.7﹣3.02×4﹣7.92
①1.7+3.98+5 +2.02
②13×50-618÷6
③(156× -26)×
④(1.5- )×(4- )
⑤
⑥