综合套题十
90 - 1.33 = 5.5 ÷ 100 = 14.6 + 90.5 =
300 ÷ 25 = 77 ×60 = 1.1 + 8.84 =
52 +199 = 7.3 - 1.7 = 20 ÷ 1000 =
30.6 × 100 = 340 - 50 = 4.31 × 1000 =
2、简便计算
25 × (4 × 99 )




989 - (244 + 489 )




99 × 611 + 611




279 × 182 - 82 × 279




7000 ÷ 4 ÷ 25




168 + 890 + 126 + 532 + 174




3、四则运算与灵活运用
375 + 234 ÷ 9 × 7




779 - 962 + 964




229 - 1020 ÷ 17 ÷ 12




25 × 24




9.1 - 8.1 + 9.64




4262 - 1214 - 862 - 186




42200 ÷ ( 422 ÷ 28 )




1812 ÷ 72 × 24




4×[(97-61)×2+362]