2017年五年級寒假生活答案
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第一天:
我的設(shè)想:6時半起床,洗臉?biāo)⒀?7時半吃早飯,可以幫爸爸媽媽做早飯.8時看書,把寒假作業(yè)做完一天,進(jìn)行復(fù)習(xí).10時做家務(wù),幫爸爸媽媽做一件力所能及的事情.11時吃午飯,可以幫爸爸媽媽擺餐具.13時看新聞,了解新的時件.16時運(yùn)動,呼吸新鮮空氣.18時吃晚飯,可以幫爸爸媽媽洗碗.19時游戲,了解望上情況.21時睡覺,早點睡可以長高哦!
數(shù)學(xué):
1.尋找失去的數(shù).
14.59+10.72-25.31=0 49.81-48.32+78.51=80
2.求未知量.
解:a=s÷h 解：h=2s÷a
=5.52÷1.2 =2×5.25÷ 2.5
=4.6(m) =10.5÷2.5
=4.2(dm)
3.找出等量關(guān)系，并列方程解答.
(1)820減去一個數(shù)的16倍等于45.5與8的積,求這個數(shù).
解:設(shè)這個數(shù)是x.
820-16x=45.5×8
820-16x=364
16x=820-364
16x=456
x=28.5
(2)一個數(shù)減去6后,擴(kuò)大7倍等于這個數(shù)的2倍,求這個數(shù).
解:設(shè)這個數(shù)是x.
7(x-6)=2x
7x-42=2x
7x-2x=42
5x=42
x=8.4
4.寫出下列各圖案的數(shù)字.
1.3 2.2 3.1 4.4
英語:1.B
2.A
3.C
4.D
5.B
第二天:
語文:
(1)連綿不段的山叫巒.
(2)山的突出的尖頂叫峰.
(3)頂上有路可通行的山叫嶺.
(4)水很深叫淵.
(5)水流急叫湍.
(6)兩山相夾之水叫澗.
民俗大觀：
過春節(jié)時，要在門上貼對聯(lián).
要吃湯圓，一家人團(tuán)團(tuán)圓圓.
要把"福"字倒著貼在門上，圖吉利.
數(shù)學(xué):
1.下列各題錯在哪里?請改正.
1.73×3.7+1.73×6.3+1.73 0.125×6.4
=1.73×(3.7+6.3)+1.73 =(0.125×8)×0.8
=1.73×10+1.73 =1×0.8
=17.3+1.73 =0.8
=19.03
2.化簡.
4×3×2×b=24b 8m×3=24m 44b÷4=11b
4×25x=100x 6×4x+x-5=25x-5 7×3x+4×5y-15=21x+20y-15
3.求值:當(dāng)k=19,m=4,n=5時，求k(3m+6n)的值.
解：當(dāng)k=19,m=4,n=5時
k(3m+6n)=19×(3×4+6×5)
=19×(12+30)
=19×42
=798
4.不計算，在下面的□填入“>、<”或“=”。
4.7×2.01>4.7 0.28÷0.5>0.28
4.7×1=4.7 0.28÷3.5<0.28
4.7×0.01<4.7 0.28÷0.01>0.28
動腦筋：
解:設(shè)小長方形的寬為x,則長方形為2x.
2(3x+2x)=8 S長=(3×0.8)×(2×0.8)
5x×2=8 =2.4×1.6
10x=8 =3.84(dm2)
x=0.8
英語：
1.仿寫句子：
This is my father.He is a boss.He is tall.He likes to swim.He lies in Shanghai.He can run fast.
2.列舉短文中包含動作的單詞：
feed,clean,live,climb,swing,eat.
3.列舉Mr Brown與動物所做的事.
He feeds the animals every day.He cleans their cages every morning.
4.找出文中動物活動的場所.
cage,rope,zoo.
5.根據(jù)短文回答問題.
1)What does Mr Brown do every day?He feeds the anemals and cleans their cages every day.
2)Does the monkey have long arms?Yes ,it does.
3)What can the monkey do?It can climb to the top of the cage and swing on a rope.
4)where does it live?It lives in a zoo.
5)What does it like to eat?It likes to eat fruit and leaves.
6.根據(jù)短文判斷，用T或F表示.
( T )1)My uncle works in a zoo.
( T )2)My uncle likes the baby monkey.
( T )3)The monkey doesn't like to eat sweets.
第三天:
數(shù)學(xué):
1.計算并湊整倒百分位(用四舍五入法).
8.02×0.04≈0.32 7.83×1.39≈10.88
8.02 7.83
×0.04 ×1.39
-------- --------
0.3208 7047
2349
783
--------
10.8837
11.8÷0.21≈56.19 88.2÷4.6≈49.13
56.194 49.134
------- --------
21∫1180 46∫1882
105 184
------- --------
130 420
126 414
-------- --------
40 60
21 46
-------- --------
190 140
189 120
-------- --------
100 200
184
2.遞等式計算(能簡則簡).
6.4×0.29+6.4×8.7+6.4 2.98×1.25×(4-0.8)×0.25
=6.4×(0.29+8.7+1) =2.98×1.25×3.2×0.25
=6.4×10 =2.98×1.25×0.4×8×0.25
=64 =(1.25×8)×(0.25×0.4)×2.98
=10×0.1×2.98
=2.98
9.9×101-9.9 [0.68÷(3.2-3.03)+1.4÷(6-0.6)
=9.9×(101-1) =[0.68÷0.17+1.4]÷5.4
=9.9×100 =[4+1.4]÷5.4
=990 =5.4÷5.4
=1
3.列方程解應(yīng)用題.
小丁丁買了1支圓珠筆和1支鋼筆,鋼筆的售價是圓珠筆的3倍,小丁丁共付了18元,圓珠筆和鋼筆的售價各式多少元?
解:設(shè)圓珠筆是x元,則鋼筆是3x元.
3x+x=18
