优质解答
30.8÷[14-9.85+1.07]
[60-9.5+28.9]÷0.18
2.881÷0.43-0.24×3.5
20×[2.44-1.8÷0.4+0.15]
28-3.4+1.25×2.4
2.55×7.1+2.45×7.1
777×9+1111×3
0.8×〔15.5-3.21+5.79〕
(31.8+3.2×4)÷5
31.5×4÷6+3
0.64×25×7.8+2.2
2÷2.5+2.5÷2
194-64.8÷1.8×0.9
36.72÷4.25×9.9
5180-705×6
24÷2.4-2.5×0.8
4121+2389÷7
671×15-974
469×12+1492
405×3213-3189
3.416÷(0.016×35)
0.8×[10-6.76÷1.2]
19.4×6.1×2.3 5.67×0.2-0.62
18.1×0.92+3.93 0.0430.24+0.875
0.4×0.7×0.25 0.75×102 100-56.23
0.78+5.436+1 4.07×0.86+9.12.5
1、89+124+11+26+48 2、875-147-23
3.25×125×40×8 4、147×8+8×53
5、125×64 6、0.9+1.08+0.92+0.1
用简便方法计算
①89+124+11+26+48 ②875-147-23
③147×8+8×53 ④125×64
计算下面各题.
1.280+840÷24×5 2.85×95-1440÷24
3.58870÷105+20×2 4.80400-4300+870÷15
5.1437×27+27×563 6.81432÷13×52+78
7.125×33-1 8.37.4-8.6+7.24-6.6
计算.(1∶1)
(1)156×107-7729 (2)37.85-(7.85+6.4)
(3)287×5+96990÷318 (4)1554÷[(72-58)×3]
脱式计算
2800÷ 100+789 (947-599)+76×64
1.36×913-276÷23 2.93+25×21×9
3.507÷13×63+498 4.723-521+504÷25
5.384÷12+23×371 6.39-21×396÷6
(1)156×[17.7-7.2÷3] (2)[37.85-(7.85+6.4)] ×30
(3)28×5+969.9÷318 (4)81÷[(72-54)×9]
57×12-560÷35 848-640÷16×12
960÷(1500-32×45) [192-(54+38)]×67
138×25×4 13×125×3×8 12+24+80×50 704×25 25×32×125 32×25+125
178×101-178 84×36+64×84 75×99+2×75 83×102-83×2 98×199
123×18-123×3+85×123 50×34×4×3 25×(24+16) 178×99+178
79×42+79+79×57 7300÷25÷4 8100÷4÷75 75×27+19×2 5 31×870+13×310
4×25×65+25×28 138×25×4 13×125×3×8 12+24+80×50
25×32×125 32×25+125 102×76 58×98
178×101-178 84×36+64×84 75×99+2×75 83×102-83×2
98×199 123×18-123×3+85×123 50×34×4×3 25×(24+16)
178×99+178 79×42+79+79×57 7300÷25÷4 8100÷4÷75