Rounding, Multiplying & Dividing Flashcards
How do you round 0.0384 to 2 decimal places?
0.04
Rounding involves adjusting the number to the nearest value based on the specified decimal places.
What is 2348 rounded to 1 significant figure?
2000
Rounding to significant figures considers only the most significant digits.
Round 0.005796 to 2 significant figures
0.0058
Significant figures are counted from the first non-zero digit.
What is 46 891.47 rounded to 3 significant figures?
46 900
Rounding to significant figures may change the number depending on the digits that follow.
Round 46 891.47 to 2 significant figures
47 000
Significant figures focus on the precision of the number, which influences rounding.
What is 46 891.47 rounded to 1 significant figure?
50 000
The rounding process involves adjusting the number to the nearest value based on the most significant digit.
Write 0.8723 correct to 2 decimal places.
0.87
Rounding to 2 decimal places means keeping two digits after the decimal point.
Write 0.9452 correct to 2 decimal places.
0.95
The last digit is rounded up if the next digit is 5 or greater.
Write 8712 correct to 3 significant figures.
871
When rounding, if the digit after the last significant figure is 5 or more, round up.
Write 0.004 864 correct to 3 significant figures.
0.00486
Leading zeros are not counted as significant figures.
Write 48 487 correct to 2 significant figures.
48 000
Significant figures are determined by the first non-zero digits.
Write 0.0195 correct to 2 significant figures.
0.020
The trailing zero after the decimal counts as a significant figure.
Write 58 correct to 1 significant figure.
60
Rounding to 1 significant figure means adjusting to the nearest ten.
Write 0.000783 correct to 1 significant figure.
0.0008
The first significant figure is the first non-zero digit.
What is the approximate calculation for 18.29 ÷ 5.56 using rounding?
18 ÷ 6 ~ 3
What happens when you multiply a positive number by a number between 0 and 1?
Decreases the value
What happens when you multiply a positive number by a number greater than 1?
Increases the value
What is the effect of multiplying a positive number by 1?
Leaves the number unchanged
What happens when you divide a positive number by a number between 0 and 1?
Increases the value
What happens when you divide a positive number by a number greater than 1?
Decreases the value
What is the effect of dividing a positive number by 1?
Leaves the number unchanged
How do you multiply 6.12 by 3.4 using long multiplication?
612 × 34 = 20,808
How many decimal places are in the product of 6.12 and 3.4?
3 decimal places
What is the result of 6.88 ÷ 1.6?
4.3
