综合套题十
30 - 8.47 = 6.6 - 3.9 = 5.62 × 1000 =
2.7 + 6.17 = 25 ×32 = 90 ÷ 10000 =
2.5 ÷ 1000 = 38.9 + 86.9 = 4000 ÷ 50 =
78.9 × 100 = 27 +699 = 740 - 60 =
2、简便计算
819 - (184 + 319 )




371 + 475 + 229 + 339 + 325




4 × (79 × 25 )




15 × 104




528 × 435 + 565 × 528




86000 ÷ (25 × 86 )




3、四则运算与灵活运用
286 - 402 + 407




4×[(488-65)÷9+195]




3801 - 178 - 1422 - 401




2.2 + 4.8 - 4.91




(63 × 8 + 370) × 4




120 ÷ (4 × 10) + 303




9480 ÷ ( 948 ÷ 11 )




946 - ( 646 - 978 )




94 × 25