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62×7.1+2.9 =440.2+2.9 =443.1 4.2×0.25 =(4+0.2)×0.25 =4×0.25+0.2×0.25 =1+0.05 =1.05 5.2×4.3+0.8×4.3 =(5.2+0.8)×4.3 =6×4.3 =25.8 8.5+1.5÷0.25×4 =8.5+6×4 =8.5+24 =32.5 0.25×0.8+2.5% =0.2+2.5% =0.225 32×125×2.5 =4×8×125×2.5 =8×125×(4×2.5) =1000×10 =10000 94÷(6.84×8.5-31.46÷0.55) =94÷(58.14-57.2) =94÷0.94 =100 13÷0.4÷2.5 =13÷(0.4×2.5) =13÷1 =13 1.25×2.5×0.8 =(1.25×0.8)×2.5 =1×2.5 =2.5 1.5×101-1.5 =1.5×(101-1) =1.5×100 =150 4.8×101 =4.8×100+4.8×1 =480+4.8 =484.8 3.25×4.7-7.8 =15.275-7.8 =7.475 0.57+0.43×0.24 =0.57+0.1032 =0.6732 945÷5÷3 =189÷3 =63 152×3÷2 =456÷2 =228 43×12×6 =516×6 =3096 200+25×33 =200+825 =1025 (25+26)×48 =51×48 =2448 576-(290+107) =576-397 =179 649+124-556 =773-556 =217 4.82-5.2÷0.8×0.6 =4.82-6.5×0.6 =4.82-3.9 =0.92
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