參考:0.95*8.6-7.6*0.9 = 1.33
能簡便的用簡便方法計(jì)算.
75+8.95+10.25 6.38-1.8+3.62
95÷1.25÷0.8 9.4×5-10.6.
7×9.9+0.1×0.7 13.8+15.6÷0.4.
85×1.25+0.85×1.75 2.15×0.9+21.5×0.11.
(1)75+8.95+10.25
=75+(8.95+10.25)
=75+19.2
=94.2
(2)6.38-1.8+3.62
=(6.38+3.62)-1.8
=10-1.8
=8.2
(3)95÷1.25÷0.8
=95÷(1.25×0.8)
=95÷1
=95
(4)9.4×5-10.6
=47-10.6
=36.4
(5)7×9.9+0.1×0.7
=7×9.9+0.01×7
=7×(9.9+0.01)
=7×9.91
=7×(10-0.09)
=7×10-7×0.09
=70-0.63
=69.37
(6)13.8+15.6÷0.4
=13.8+39
=52.8
(7)85×1.25+0.85×1.75
=106.25+1.4875
=107.7375
(8)2.15×0.9+21.5×0.11
=2.15×0.9+2.15×1.1
=2.15×(0.9+1.1)
=2.15×2
=4.3
0.95*8.6-7.6*0.9請用簡便方法計(jì)算
0.95*8.6-7.6*0.9請用簡便方法計(jì)算
數(shù)學(xué)人氣:154 ℃時(shí)間:2020-04-04 08:34:31
優(yōu)質(zhì)解答
我來回答
類似推薦
- 用簡便方法計(jì)算:6.3*0.125+3.7/8
- 0.9/1.25/8簡便方法計(jì)算
- 用簡便方法計(jì)算:6.9-4.5×0.8-0.4
- 58.8/(0.6*0.7)/0.02用簡便方法計(jì)算
- 用簡便方法計(jì)算:19.98*37-199.8*1.9+1998*0.82
- 定義在R上的偶函數(shù)f(x-2),當(dāng)x>-2時(shí),f(x)=ex+1-2(e為自 然對數(shù)的底數(shù)),若存在k∈Z,使方程f(x)=0的實(shí)數(shù)根x0∈(k-1,k),則k的取值集合是
- There aren't any pens in the bag,______?A.are there B.aren't there C.are they D.aren't they
- 一道化學(xué)反應(yīng)速率計(jì)算題,急
- 5層磚混結(jié)構(gòu),建筑面積2700m2,條形基礎(chǔ),
- 請你設(shè)計(jì)一個(gè)從袋中取球的游戲,共有3種顏色的球,使取出紅球的可能件分別是黃球和藍(lán)球的3倍.
- 議論文怎么寫?怎么儲備素材?
- 遼寧省,選修選哪幾本學(xué)?
猜你喜歡
- 1證明tanβ/2=sinβ/(1+sinβ)=(1-cosβ)/sinβ
- 2用矮字組詞語、閱讀“水滴船”、、急急急!
- 3雪蓮果心是苦的能吃嗎
- 4把一個(gè)重為 2 牛的蘋果豎直向上拋出,蘋果在空中受到重力和空氣阻力的作用.若蘋果在上升和下降過程中所受合力的大小分別為F1、F2,則( ?。?A.Fl可能小于F2 B.Fl可能等于F2 C.Fl一定等于F
- 5我們定義一種運(yùn)算:F(X)=x的平方-3x-4.例如:f(2)=2的平方-3乘2-4.若f(a2+b2)=0,則a2+b2=
- 6開始轉(zhuǎn)化成沉淀與完全轉(zhuǎn)化成沉淀的區(qū)別
- 7五年級上冊1課近反義詞
- 8L have a pain in my back l catch a clod.
- 9Do you l like fly a kite?回答:
- 10數(shù)學(xué)題目 出租車收費(fèi)問題
- 11___it is to go for a picnic on such a fine day.
- 12一個(gè)小數(shù)的小數(shù)點(diǎn)向左移動兩位后,與原來的數(shù)的差是34.65,那么原數(shù)是_.