decimal numbers Flashcards

(19 cards)

1
Q

how would you multiply decimal numbers e.g. 1.5*0.8

A

You would times the numbers in the equation by tens until they become integers, you would work out the answer, then divide it by the number of 10s you multiplied it by .e.g. 15*8
=120/100=1.2

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2
Q

how would you divide decimal numbers e.g.2.4/0.2

A

You would multiply the number by 10s until they are integers the work out the answer. YOU DO NOT NEED TO DIVIDE BACK! e.g. 24/2=12

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3
Q
A
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4
Q

What is the result of 4.5 ÷ 1.5?

A

3

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5
Q

True or False: When multiplying two decimal numbers, the product will always be smaller than the larger number.

A

False

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6
Q

Fill in the blank: To divide a decimal by a whole number, you can simply perform the division as you would with whole numbers and place the decimal point in the __________.

A

quotient

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7
Q

What is 7.2 × 0.5?

A

3.6

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8
Q

If you multiply 0.6 by 0.4, what is the product?

A

0.24

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9
Q

When dividing decimals, how do you handle the decimal point?

A

Align the decimal points and divide as if they were whole numbers.

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10
Q

What is 9.8 ÷ 0.2?

A

49

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11
Q

True or False: You can ignore decimal points when multiplying decimal numbers.

A

False

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12
Q

Fill in the blank: The product of 0.75 and 0.8 is __________.

A

0.6

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13
Q

What is the first step in dividing a decimal by another decimal?

A

Convert the divisor to a whole number by multiplying both the divisor and dividend by 10.

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14
Q

What is 0.3 × 0.6?

A

0.18

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15
Q

When multiplying 1.2 by 10, what is the result?

A

12

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16
Q

What is the result of 5.5 ÷ 0.5?

17
Q

Fill in the blank: The product of any decimal and 1 is __________.

A

the decimal itself

18
Q

True or False: The number of decimal places in the product of two decimal numbers is the sum of the decimal places in each factor.

19
Q

how would you turn a decimal into a fraction

A

put the number/numbers as the numerator and put a one as the denominator with the number of decimal places as the number of zeros after the 1