Maths Decimals - Rounding, Multiplying and Dividing Flashcards
What is the process of rounding a decimal number?
The process of rounding a decimal number involves adjusting it to a nearby specified value, usually to the nearest whole number or a specified decimal place.
True or False: When rounding 2.7 to the nearest whole number, the result is 3.
True
Fill in the blank: When rounding 4.56 to one decimal place, it becomes ___.
4.6
What is the rule for rounding up?
If the digit to the right of the rounding digit is 5 or greater, round up.
What is the result of multiplying 3.2 by 2.5?
8.0
True or False: The product of two decimal numbers is always a decimal.
True
What do you get when you divide 10.0 by 2.5?
4.0
Multiple Choice: What is 7.5 rounded to the nearest whole number? A) 7 B) 8 C) 7.5
B) 8
How many decimal places does the result of 5.75 x 2.3 have?
Three decimal places.
What is the first step in multiplying decimal numbers?
Ignore the decimal points and multiply the numbers as if they were whole numbers.
Fill in the blank: The result of 0.6 divided by 0.2 is ___.
3.0
True or False: When dividing decimals, you can move the decimal point in the divisor to the right.
True
What is the rounded value of 9.99 to one decimal place?
10.0
What happens to the decimal point when multiplying by 10?
The decimal point moves one place to the right.
Multiple Choice: Which of the following is a correct rounding of 3.14159 to three decimal places? A) 3.14 B) 3.142 C) 3.1416
B) 3.142
What is the quotient of 15.0 divided by 0.5?
30.0
Fill in the blank: 8.4 rounded to the nearest whole number is ___.
8
True or False: You should always round down if the digit to the right is less than 5.
True
What is the result of 0.75 multiplied by 0.4?
0.30
Multiple Choice: What is the result of 1.2 x 0.5? A) 0.6 B) 0.12 C) 6.0
A) 0.6
What is the rule for rounding down?
If the digit to the right of the rounding digit is less than 5, round down.
What is the result of 6.3 divided by 1.5?
4.2
Fill in the blank: The product of 0.2 and 0.3 is ___.
0.06
True or False: When dividing by a decimal, you must convert it to a whole number first.
True
What is the result of rounding 5.555 to two decimal places?
5.56
What do you call the number of decimal places in a number?
Precision
Multiple Choice: Which operation requires you to align decimal points? A) Addition B) Multiplication C) Division
A) Addition
