Rational Number Operations Quiz

Authored by Lisa Lee

Mathematics

7th Grade

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14 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Add Rational Numbers: Write in simplest form
$\frac{2}{3}+\frac{4}{3}$

$\frac{6}{6}$

$2$

$\frac{2}{3}$

I don't know teacher

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Add Rationals Numbers: $2\frac{5}{6}+1\frac{1}{6}$

$3\frac{5}{6}$

$\frac{24}{6}$

$6$

$\frac{18}{6}$

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Subtract: $\frac{13}{5}-\frac{7}{5}$

$\frac{6}{5}$

$\frac{5}{6}$

$-\frac{6}{5}$

$-\frac{5}{6}$

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Subtract: $-\frac{8}{15}-\frac{4}{15}$

$\frac{4}{15}$

$\frac{12}{30}$

$-\frac{12}{15}$

$-\frac{12}{30}$

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Add when they have different denominators: $\frac{1}{3}+\left(-\frac{1}{5}\right)$

$\frac{1}{3}+\left(-\frac{1}{3}\right)$

$-\frac{6}{3}$

$\frac{2}{15}$

FILL IN THE BLANKS QUESTION

1 min • 1 pt

The produc of two numbers with different sign is always

(a)

FILL IN THE BLANKS QUESTION

1 min • 1 pt

The produc of two numbers with THE SAME sign is always

(a)

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Multiply: $-\frac{1}{2}\left(-\frac{4}{5}\right)$

$-\frac{4}{5}$

$\frac{4}{10}$

$-\frac{4}{10}$

$\frac{4}{5}$

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Multiply: $-\frac{1}{4}\left(-\frac{4}{5}\right)$

$\frac{5}{9}$

$-\frac{4}{20}$

$-\frac{5}{9}$

$\frac{4}{20}$

10.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Divide: $-\frac{7}{6}\div\frac{1}{5}$

$-\frac{7}{6}\times\frac{5}{1}$

$-\frac{7}{6}\times\frac{1}{5}$

$\frac{35}{6}$

$-\frac{35}{6}$

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Rational Number Operations

Add Rational Numbers: Write in simplest form 23+43\frac{2}{3}+\frac{4}{3}32​+34​

Add Rationals Numbers: 256+1162\frac{5}{6}+1\frac{1}{6}265​+161​

Subtract: 135−75\frac{13}{5}-\frac{7}{5}513​−57​

Subtract: −815−415-\frac{8}{15}-\frac{4}{15}−158​−154​

Add when they have different denominators: 13+(−15)\frac{1}{3}+\left(-\frac{1}{5}\right)31​+(−51​)

The produc of two numbers with different sign is always (a)

The produc of two numbers with THE SAME sign is always (a)

Multiply: −12(−45)-\frac{1}{2}\left(-\frac{4}{5}\right)−21​(−54​)

Multiply: −14(−45)-\frac{1}{4}\left(-\frac{4}{5}\right)−41​(−54​)

Divide: −76÷15-\frac{7}{6}\div\frac{1}{5}−67​÷51​

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Add Rational Numbers: Write in simplest form
$\frac{2}{3}+\frac{4}{3}$

Add Rationals Numbers: $2\frac{5}{6}+1\frac{1}{6}$

Subtract: $\frac{13}{5}-\frac{7}{5}$

Subtract: $-\frac{8}{15}-\frac{4}{15}$

Add when they have different denominators: $\frac{1}{3}+\left(-\frac{1}{5}\right)$

The produc of two numbers with different sign is always

(a)

The produc of two numbers with THE SAME sign is always

(a)

Multiply: $-\frac{1}{2}\left(-\frac{4}{5}\right)$

Multiply: $-\frac{1}{4}\left(-\frac{4}{5}\right)$

Divide: $-\frac{7}{6}\div\frac{1}{5}$