综合套题十
54.62 - 8.7 =	1.9 + 9.65 =	400 ÷ 25 =
3.6 ÷ 100 =	61.7 + 49.7 =	8.2 - 7.4 =
5.46 × 1000 =	16 ×25 =	780 - 90 =
66 +168 =	61.3 × 10 =	90 ÷ 1000 =
2、简便计算
2.36 + 1.63 + 9.05 + 3.64 + 1.37	( 125 + 90 ) × 8	3000 ÷ 8 ÷ 125
45 × 4 × 25	957 - 171 - 229	1001 × 344 - 344
3、四则运算与灵活运用
648 ÷ 72	483 + 363 - 354	7.7 - 7.4 + 3.94
1000 ÷ 25	3.61 - 4.52 + 1.39	4104 ÷ 19 ÷ 12 + 133
856 - 176 - 556	2×[600÷(83-75)+455]	(49 × 8 + 51) × 9