作业帮能简算的简算 49.5÷9+35.1÷7.8 [2.5-8分之31÷{6分之11+0.75]}×17分之30 19.63×99+19.63{7.6-10.5×0.6}×13分之10
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/09 07:48:51
![能简算的简算 49.5÷9+35.1÷7.8 [2.5-8分之31÷{6分之11+0.75]}×17分之30 19.63×99+19.63{7.6-10.5×0.6}×13分之10](/uploads/image/z/206273-65-3.jpg?t=%E8%83%BD%E7%AE%80%E7%AE%97%E7%9A%84%E7%AE%80%E7%AE%97+49.5%C3%B79%2B35.1%C3%B77.8+%5B2.5-8%E5%88%86%E4%B9%8B31%C3%B7%7B6%E5%88%86%E4%B9%8B11%2B0.75%5D%7D%C3%9717%E5%88%86%E4%B9%8B30+19.63%C3%9799%2B19.63%7B7.6-10.5%C3%970.6%7D%C3%9713%E5%88%86%E4%B9%8B10)
能简算的简算 49.5÷9+35.1÷7.8 [2.5-8分之31÷{6分之11+0.75]}×17分之30 19.63×99+19.63{7.6-10.5×0.6}×13分之10
能简算的简算 49.5÷9+35.1÷7.8 [2.5-8分之31÷{6分之11+0.75]}×17分之30 19.63×99+19.63
{7.6-10.5×0.6}×13分之10
能简算的简算 49.5÷9+35.1÷7.8 [2.5-8分之31÷{6分之11+0.75]}×17分之30 19.63×99+19.63{7.6-10.5×0.6}×13分之10
49.5÷9+35.1÷7.8
=5.5+4.5
=10
[2.5-8分之31÷{6分之11+0.75]}×17分之30
=（2.5-31/8*12/31）*30/17
=（2.5-1.5）*30/17
=1*30/17
=30/17
19.63×99+19.63
=19.63*（99+1）
=19.63*100
=1963
{7.6-10.5×0.6}×13分之10
=（7.6-6.3）*10/13
=1.3*10/13
=1
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能简算的简算 49.5÷9+35.1÷7.8 [2.5-8分之31÷{6分之11+0.75]}×17分之30 19.63×99+19.63
你这题目好像抄错了吧17分之30 19.63×99+19.63
49.5÷9+35.1÷7.8
=5.5+4.5
=10
[2.5-8分之31÷{6分之11+0.75]}×17分之30
=[2.5-(24*31/8)÷{24*(11/6+3/4)]}×30/17
=[2.5-31÷{44+18}×30/17
=(2.5-31÷62)×30/17
=[2.5-0.5}×30/17
=2×30/17...
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49.5÷9+35.1÷7.8
=5.5+4.5
=10
[2.5-8分之31÷{6分之11+0.75]}×17分之30
=[2.5-(24*31/8)÷{24*(11/6+3/4)]}×30/17
=[2.5-31÷{44+18}×30/17
=(2.5-31÷62)×30/17
=[2.5-0.5}×30/17
=2×30/17
=60/17
19.63×99+19.63
= 19.63×(99+1)
= 19.63×100
=1963
{7.6-10.5×0.6}×13分之10
={7.6-6.3}×10/13
=1.3×10/13
=1
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