1.÷25×4 2.600× =800÷25×4 =600× =8 =24000 【查看更多】

 

题目列表(包括答案和解析)

31×69= 4148÷32= 0.102×99= 5492÷19= 88.4+11.8=
25π= 4.9×8.1= 2.18+6.89= 143÷672= 103×59=
0.018×250=

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31×69=4148÷32=0.102×99=5492÷19=88.4+11.8=
25π=4.9×8.1=2.18+6.89=143÷672=103×59=
0.018×250=

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计算下面各题(能用简便方法的用简便方法).
22.7×1.25×O.8             
3.91×2.8+6.09×2.8
9.83×(3.8-2.3)+1.5×6.17           3.6×51+36×4.9
7.8×9.9                  5.4-3.2+12.6-7.8
7.2×4.1-9.5÷7.6                            8.125×3+7×8.125
(0.75×27.5-3.405)÷0.8 [0.16+(3-1.272)÷1.2]×1.25.

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计算下面各题(能用简便方法的用简便方法).

22.7×1.25×O.8             3.91×2.8+6.09×2.8
9.83×(3.8-2.3)+1.5×6.17          3.6×51+36×4.9
7.8×9.9                 5.4-3.2+12.6-7.8
7.2×4.1-9.5÷7.6                           8.125×3+7×8.125
(0.75×27.5-3.405)÷0.8[0.16+(3-1.272)÷1.2]×1.25.

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口算.

(1)1.4+3.8=

(2)9.7-6.5=

(3)3.75-2.25=

(4)10-9.2=

(5)4.2-1.6=

(6)42.3+5.6=

(7)0.27+0.73=

(8)4.24+3.6=

(9)1.4+0.3=

(10)0.5+0.08=

(11)1-0.03=

(12)7.2-3.7=

(13)3-0.52=

(14)4.6-1.4=

(15)0.12+0.03=

(16)4.6-1.4=

   

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