发布人:繁体字网(www.fantiz5.com) 发布时间:2015-10-24 07:30:00
试题原文 |
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(1)315×156×38, =315×156×2×19, =315×2×156×19, =630×156×19, =98280×19, =1867320; (2)252528×4, =(250000+2500+20+8)×4, =250000×4+2500×4+20×4+8×4, =1000000+10000+80+32, =1010112; (3)710÷10+710, =71+710, =781; (4)(29+227)×27, =(250+6)×27, =250×27+6×27, =6750+162, =6912; (5)157×5.6+45, =(100+57)×5.6+45, =100×5.6+57×5.6+45, =560+319.2+45, =924.2; (6)35×1310×31721, =5×7×1310×31721, =(5×1310)×(7×31721), =6550×222047, =1454407850. |
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