小升初数学『简便计算』专项训练题带答案

小升初数学『简便计算』专项训练题带答案


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 75000÷125÷15 =75×1000÷125÷15 =75÷15×1000÷125 =40 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 =30÷6×6 =30 39600÷25 =396×100÷25 =396×4 =1584