综合套题十
9.3 ÷ 1000 = 70 ÷ 10000 = 23.9 + 32.6 =
93.6 + 17 = 30 - 6.48 = 5000 ÷ 50 =
84 ×40 = 63.2 × 100 = 68 +463 =
9.08 × 1000 = 580 - 90 = 9.2 - 1.8 =
2、简便计算
999 × 571 + 571




713 - (425 + 113 )




( 800 + 4 ) × 25




419 + 641 + 136 + 281 + 264




72000 ÷ (25 × 72 )




125 × (8 × 88 )




3、四则运算与灵活运用
6.1 + 3.35 - 2.09




57 × 700 ÷ 14




(138 ÷ 2 + 309) × 9




253 - 1584 ÷ (9 × 11)




401 - ( 101 - 665 )




650 ÷ 25




4×[(34-28)×9+372]




988×393-393×14-74×393




98 × 125