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Multiplication and Division 6
How many ninths in 50?

Multiplication and Division 6

This Math quiz is called 'Multiplication and Division 6' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is an enjoyable way to learn if you are in the 3rd, 4th or 5th grade - aged 8 to 11.

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Multiplication and division can involve dealing with fractions. Knowing your times tables is always useful when it comes to multiplying and dividing. You should be able to do most of this quiz in your head.

1 .
What is the correct answer to the given calculation?
49 x 13
610
601
673
637
49 x 13 = (50 x 13) - 13 = 637. Increase 49 by 1 and do the multiplication THEN subtract 13. Be on the LOOKOUT for products that can be simplified: this will enable you to do the calculation in your head
2 .
What is the correct answer to the given calculation?
17 x 25
342
452
425
354
Short cut: 17 x 25 = (17 x 100) ÷ 4 = 1,700 ÷ 4 = 425. Multiply 25 by 4, then divide the product by 4. Be on the LOOKOUT for products that can be simplified: this will enable you to do the calculation in your head
3 .
What is the correct answer to the given calculation?
18 ÷ 5 gives a fractional remainder
35
53
518
318
18 ÷ 5 = 3 remainder 3. You are dividing by 5, so the fractional remainder must be 35
4 .
What is the correct answer to the given calculation?
15 x 25
75
125
13
5
15 x 25 = 25 ÷ 5 = 5. In general, multiplying by 1 over a number is the same as dividing by that number: in this case, 5
5 .
What is the correct answer to the given calculation?
12 ÷ 7 gives a fractional remainder
75
57
712
512
12 ÷ 7 = 1 remainder 5. You are dividing by 7, so the fractional remainder must be 57
6 .
What is the correct answer to the given calculation?
10,000 x 25
250,000
25,000
2,500
250
10,000 x 25 = 250,000. To multiply 25 by 1,000, just add three zeros to 25. If there is a decimal point in the number, move the decimal point 3 places to the right and add a zero for each place position if there are no digits in those place positions. You should be able to do this in your head
7 .
What is the correct answer to the given calculation?
The number of 19 in 50
5.6
45
9
450
The number of 19 in 50 = 50 x 9 = 450. To divide by a fraction, invert (turn upside down) the fraction and multiply: in this case, dividing by one ninth is the same as multiplying by 9. LEARN this technique
8 .
What is the correct answer to the given calculation?
18 x 64
8
16
4
2
Multiplying by 18 is the same as dividing by 8. 64 ÷ 8 = 8. In general, multiplying by 1 over a number is the same as dividing by that number: in this case, 8
9 .
What is the correct answer to the given calculation?
12 ÷ 27
42
3.4
48
56
To divide by a fraction, invert (turn upside down) the fraction and multiply. LEARN this technique. So, 12 ÷ 27 = 12 x 72 = (12 x 7) ÷ 2 = 84 ÷ 2 = 42
10 .
What is the correct answer to the given calculation?
50 ÷ 2100
1
25,000
25
2,500
50 ÷ 2100 = 50 ÷ 150 = 50 x 50 = 2,500. To divide by a fraction, invert (turn upside down) the fraction and multiply, but DON'T forget to simplify the fraction whenever you can. LEARN this technique
Author:  Frank Evans

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