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การคูณจำนวนตรรกยะ

Authored by Corneliu Caraba

Mathematics

7th - 8th Grade

CCSS covered

Used 67+ times

การคูณจำนวนตรรกยะ
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19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is reciprocal of

 35\frac{3}{5}  

 −35-\frac{3}{5}  

 −53-\frac{5}{3}  

 53\frac{5}{3}  

 35\frac{3}{5}  

Tags

CCSS.6.NS.A.1

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the product of two numbers that are reciprocal to each other?

0

1

−1-1

not a real number

Tags

CCSS.HSA.APR.D.7

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the reciprocal of 5 ?

55

−5-5

15\frac{1}{5}

−15-\frac{1}{5}

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 3.78 ÷4.2 3.78\ \div4.2\   
Before we do the division we must multiply the divisor and the dividend by what number?

0

10

100

1000

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 78÷15\frac{7}{8}\div\frac{1}{5}  
What is the next step for the above division?

divide by -5

divide by 1/5

multiply by 5

multiply by 1/5

Tags

CCSS.7.NS.A.2B

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 −10 12÷34=?-10\ \frac{1}{2}\div\frac{3}{4}=?  

 1414 

 −14-14  

 845\frac{84}{5}  

 −845-\frac{84}{5}  

Tags

CCSS.7.NS.A.2B

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Find the product

 65×58\frac{6}{5}\times\frac{5}{8}  

 1528\frac{15}{28}  

 −34-\frac{3}{4}  

 34\frac{3}{4}  

 308\frac{30}{8}  

Tags

CCSS.7.NS.A.2A

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