综合套题十
51.4 × 10 =	22.3 + 77 =	7.5 ÷ 1000 =
87 +148 =	20 ÷ 1000 =	16 ×25 =
6.32 × 1000 =	50 - 3.21 =	49.9 + 94.3 =
4.4 - 3.7 =	150 - 80 =	5000 ÷ 50 =
2、简便计算
562 - 124 - 176	46000 ÷ (46 × 25 )	1.98 + 5.72 + 9.6 + 2.02 + 3.28
62 × 125 × 8	( 25 + 800 ) × 4	101 × 709 - 709
3、四则运算与灵活运用
0.7 - 2.41 + 4.3	(320 ÷ 5 + 642) × 9	4×[6×(49-25) +207]
5.36 + 3.64 - 6.9	871 - ( 171 - 396 )	( 365 + 140 ) ÷ 5
189 - 4420 ÷ 17 ÷ 13	42400 ÷ ( 424 ÷ 82 )	631 - 188 - 231