综合套题十
2.29 × 1000 = 4.1 ÷ 1000 = 68.3 × 10 =
39.1 + 26 = 7.6 - 4.7 = 410 - 40 =
70 ÷ 10000 = 8000 ÷ 50 = 21.8 + 46.6 =
125 ×64 = 90 - 5.22 = 579 +26 =
2、简便计算
473 + 311 + 127 + 636 + 289




801 - (222 + 401 )




99 × 982 + 982




68000 ÷ (68 × 25 )




1009 × 19




94 × 8 × 125




3、四则运算与灵活运用
3705 ÷ 19 ÷ 13 + 388




25 × 54




9.1 + 7.26 - 5.11




6754 - 289 - 1311 - 454




80900 ÷ ( 809 ÷ 72 )




6×[3×(63-33) +441]




230 + 39 × 9 - 326




455 × 999




4.42 - 2.09 + 4.58