文档介绍:: .
12 9 12 12 5 4 4 4
18 9 7 9 9 2 5 2 5 9
× + × + (99+ )÷9
25 16 25 16 16 3 4 5 6 10
33 4 1 14 4 2 10
(21× + ×21)× ÷[( + )× ]
7 7 4 15 5 3 11
1 1 5 4 4 5 5
+3÷ ( + )×30 × ÷
3 2 6 5 5 6 8
5 4 3 5 1 1 3 16 1 5 2
63 ( ) [ ( ) ] 35
9 21 7 8 2 3 4 23 19 17
4 4 7 6 7 1 6 23
(19 9 ) (2 1 ) 9 19
9 19 9 19 1 3 9 1 3 24
4 1 5 1 7 1 1 1 1
61 71 1 1 1 1 … 1
5 5 6 6 6 2 3 4 1 9
4二、脱式计算(60 题)
175-75÷25 68+35×13 725-(125+237)
(114+166)÷35 432÷(9×8) 189-60+40
216+305 47+236+64 25×44
102×99 2×125 645-180-245
382×101-382 4×60×50×8 35×8+35×6-4×35
÷×4 ÷÷ 200÷[(172-72)÷25]
630×[840÷(240-212)] 800÷25 2000÷125
25×63×4 9000÷125 99×11
5794-