综合套题十
43.9 + 88 =	20 ÷ 1000 =	2.95 × 1000 =
8000 ÷ 50 =	68 +879 =	78.5 + 80.8 =
28.7 × 100 =	125 ×16 =	90 - 2.27 =
9.4 ÷ 100 =	430 - 40 =	4.1 - 2.5 =
2、简便计算
4.28 + 3.12 + 2.97 + 2.88 + 6.03	73000 ÷ (25 × 73 )	8 × ( 125 + 40 )
642 - (342 + 101 )	771 + 771 × 99	125 × (8 × 31 )
3、四则运算与灵活运用
98 × 748	25 × 76 × 125	3.7 + 4.37 - 5.9
1464 ÷ 84 × 28	435 - 585 ÷ (9 × 5)	994 + 55 × 8 - 240
5×[(283-31)÷9+398]	2.41 - 1.93 + 5.59	229 - ( 129 - 808 )