综合套题十
80 ÷ 1000 = 9.6 - 7.7 = 16 ×25 =
228 +89 = 6.6 ÷ 100 = 1.9 + 47.7 =
5.69 × 1000 = 40 - 7.19 = 5.1 + 5.36 =
2000 ÷ 50 = 33.2 × 10 = 720 - 30 =
2、简便计算
1009 × 19




917 × 353 + 917 × 647




1000 ÷ 4 ÷ 25




858 - (158 + 118 )




4 × (25 × 25 )




3.05 + 1.79 + 2.69 + 3.21 + 2.31




3、四则运算与灵活运用
125 × 48 × 25




4×[7×(60-42) +433]




2456 - 741 - 959 - 456




7.5 + 7.2 - 7.84




265 - 770 ÷ 14 ÷ 11




98 × 125




99 × 763




25 × 32




(380 ÷ 4 + 795) × 5