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12th Class Math Quiz

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Questions and Answers

What is the result of the operation $36 rac{4}{9}$?

24 (correct)
16
28
20

The operation $rac{1}{5} imes 4 + 6 rac{2}{3}$ equals $rac{24}{15}$.

False (B)

The result of the operation $rac{3}{5} imes 2 rac{1}{2}$ is ___.

Match the operations with their correct results:

<p>12($rac{1}{6} + rac{1}{9}$) = 18 (1 rac{1}{3}) imes (1 rac{1}{6}) = $rac{16}{18}$ 36 $rac{4}{9}$ = 24 $rac{3}{5} imes 2 rac{1}{2}$ = 3</p> Signup and view all the answers

Flashcards

Multiplying a Whole Number by a Fraction

To multiply a whole number by a fraction, you multiply the whole number by the numerator of the fraction and then divide the result by the denominator.

Multiplying a Fraction by a Mixed Number

To multiply a fraction by a mixed number, you first convert the mixed number into an improper fraction, then multiply the numerators and the denominators.

Multiplying Fractions

To multiply fractions, you multiply the numerators and the denominators.

Multiplying a Fraction by a Whole Number

When multiplying a fraction by a whole number, you can think of the whole number as a fraction with a denominator of 1.

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Multiplying Mixed Numbers

To multiply mixed numbers, you first convert them into improper fractions, then multiply the numerators and the denominators.

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Study Notes

Question 1

The calculation is 36 ÷ 9
The answer is 4
Possible options: 28, 24, 20, 16
Correct answer: 24

Question 2

The calculation is (1/5) + (6.2/3)
The answer is 25/15
The possible options: 24/5, 25/5, 24/15, 25/15
Correct answer: 25/15

Question 3

The calculation is 4 × 2/3
The answer is 8/3
Possible options: 8/3, 9, 10/3, 11/3
Correct answer is 8/3

Question 4

The calculation is 3/5 × 2/2
The answer is 6/10, which simplifies to 3/5
Possible options: 7, 8, 9, 10
Correct answer is 7

Question 5

The calculation is 12 × (1/6 + 1/9)
The calculation simplifies to 12 x (5/18)
The answer is 60/18 = 10/3
Possible options: 10/3, 12/18, 48/36, 60/54
Correct answer is 10/3

Question 6

The calculation is (1-1/3) + (1+1/6)
The calculation simplifies to (2/3) + (7/6)
The answer is (4+7)/6 = 11/6
Possible options: 1/3, 4/6, 7/9, 16/18
Correct answer is 11/6 or 28/18

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Description

Test your math skills with this quiz designed for 12th-grade students. It covers various calculations including division, addition, and multiplication of fractions and whole numbers. Challenge yourself to solve these problems accurately and improve your proficiency in mathematics.