XTJH第一冊2-3分數的四則運算-進階10題

XTJH第一冊2-3分數的四則運算-進階10題

7th Grade

10 Qs

quiz-placeholder

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XTJH第一冊2-3分數的四則運算-進階10題

XTJH第一冊2-3分數的四則運算-進階10題

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Medium

Created by

余金城 余金城

Used 3+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 4\frac{4}{15}  26252\frac{6}{25} 兩分數分別乘上同一個正整數,使這兩個分數均變成正整數,則所乘的最小正整數為何?                                            
(A)100 (B)125 (C)50 (D)75

50

75

100

125

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

計算 (7423)+26572513\left(-74\frac{2}{3}\right)+26\frac{5}{7}-25\frac{1}{3} 的值為何? 

735773\frac{5}{7}

- 73\frac{5}{7}

732773\frac{2}{7}

7327-73\frac{2}{7}

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列分數中哪一個數最小?

247-2\frac{4}{7}

217-2\frac{1}{7}

235-2\frac{3}{5}

225-2\frac{2}{5}

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

計算 (713217)(167513)\left(-7\frac{1}{3}-2\frac{1}{7}\right)-\left(1\frac{6}{7}-5\frac{1}{3}\right) = ? 

0

127\frac{12}{7}

6

-6

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 \frac{1}{2\times3\times4\times5}  \frac{1}{2\times3\times6\times7} 化為最簡分數得 ab\frac{a}{b} ,則下列何者正確? 

a=31

a=62

b=1680

b=5040

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 8059(11234+6059)+(532059)=\frac{80}{59}-\left(\frac{1}{12}-\frac{3}{4}+\frac{60}{59}\right)+\left(\frac{5}{3}-\frac{20}{59}\right)=  ?

 32\frac{3}{2}    

 73\frac{7}{3}  

 85\frac{8}{5}    

 119\frac{11}{9}  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

已知棒球選手的打擊率= \frac{安打數}{打擊次數} 

,若甲、乙、丙、丁四位選手的打擊次數分別是24、19、29、33次,安打數分別是11、6、16、20支,則下列何者是甲、乙、丙、丁四位棒球選手打擊率的高低順序?

甲>乙>丙>丁

乙>甲>丙>丁

丙>丁>乙>甲

丁>丙>甲>乙

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