
Mastering Decimal Operations in Pre-Algebra

Interactive Video
•
Mathematics
•
6th - 10th Grade
•
Hard
+3
Standards-aligned

Mia Campbell
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to line up decimal points when adding or subtracting decimals?
To ensure the numbers are in the correct place value positions
To avoid rounding errors
To make the numbers look neat
To simplify the calculation
Tags
CCSS.5.NBT.B.7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When subtracting decimals with different signs, what should you do first?
Line up the decimal points
Add the numbers together
Subtract the smaller number from the larger number
Ignore the signs
Tags
CCSS.7.NS.A.1C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you have a double negative in decimal operations?
It becomes undefined
It turns into a positive
It remains negative
It turns into zero
Tags
CCSS.7.NS.A.1D
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In decimal multiplication, why might you choose to put the number with more digits on top?
To make the calculation easier
To keep the numbers aligned
To avoid errors
To follow a standard rule
Tags
CCSS.5.NBT.B.7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of multiplying 2.6 by 0.25?
0.75
0.625
0.65
0.70
Tags
CCSS.6.NS.B.3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When multiplying decimals, how do you determine the number of decimal places in the result?
By dividing the decimal places in the factors
By adding the decimal places in the factors
By subtracting the decimal places in the factors
By multiplying the decimal places in the factors
Tags
CCSS.6.NS.B.3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In decimal division, what must you do to the divisor before performing the division?
Move the decimal point to the end
Round it to the nearest whole number
Convert it to a fraction
Multiply it by 10
Tags
CCSS.5.NBT.B.6
CCSS.6.NS.B.2
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