1-6年级数学【简便运算】寒假作业计算题

1-6年级数学【简便运算】寒假作业计算题


简介:
125×(17×8)×4 =125×8×4×17 =1000×68 =68000 25×16×125 =25×2×8×125 =50×1000 =50000 13×99 =13×(100-1) =1300-13 =1287 7900÷4÷25 =7900÷(4×25) =7900÷100 =79 150×40÷50 =150÷50×40 =3×40 =120 5600÷(25×7) =56×100÷25÷7 =56÷7×100÷25 =32 210÷42×6 =210÷7÷6×6 =210÷7 =30 39600÷25 =396×100÷25 =396×4 =1584 321×81+321×19 =321×(81+19) =321×100 =32100 5600÷(1400÷16) =5600÷1400×16 =4×16 =64 27000÷125 =27×1000÷125 =27×8 =216 99×256+256 =99×256+256×1 =256×(99+1) =25600 45×102 =45×(100+2) =45×100+45×2 =4590 99×26 =(100-1)×26 =100×26-1×26 =2574 35×8+35×6-4×35 =35×(8+6-4) =35×10 =350