小学四年级数学【简便运算】寒假计算题

小学四年级数学【简便运算】寒假计算题


简介:
125×(17×8)×4 =125×8×4×17 =1000×68 =68000 375×480+6250×48 =480×(375+625) =480×1000 =480000 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 =120 210÷42×6 =210÷7÷6×6 =30÷6×6 =30 39600÷25 =396×100÷25 =396×4 =1584 321×81+321×19 =321×(81+19) =321×100 =32100 27000÷125 =27×1000÷125 =27×8 =216