Adding Decimals
Subtracting Decimals
Multiplying Decimals
Dividing Decimals
Review
100
When adding decimals, the most important thing to remember is ____________________.
"line up the decimals."
100
When subtracting decimals, the most important thing to remember is ____________________.
"Line up the decimals."
100
True or False:
When multiplying decimals, you MUST line up the decimal points.
False
100
When dividing with decimals, the ________ cannot have a decimal.
Divisor
100
The formula for the area of a parallelogram is...
base x height
200
Evaluate
1.8 + 3.5
5.3
200
Evaluate
13.4 - 7.1
6.3
200
One strategy you can use to multiply decimals is __________________.
1) converting them to fractions, 2) the standard algorithm
200
Solve 219.6 div 9
24.4
200
The formula for the area of a triangle is...
base x height ÷ 2
300
To solve the problem below, you need to add a ______ to the top number.
zero, 0
300
To solve the problem below, you need to add a ______ to the top number.
zero, 0
300
The solution to 1,456.1 x 324.445 will likely have _________ digits after the decimal.
4
300
Solve 1.24 div 4
.31
300
How many flat faces does a square pyramid have?
5
400
What is the total average minutes of i-Ready of all Mrs. Mahan's classes?
3rd period - 6.9 hours
4th period - 8.06 hours
5th period - 7.37 hours
6th period - 7.3 hours
29.63 hours
400
Ms. Gerety runs a mile in 9.87 minutes. Ms. Mahan runs a mile in 14.11 minutes. How much faster is Ms. Gerety's mile time?
4.24 minutes
400
It takes Ms. Mitchel 0.08 minutes to solve a simple multiplication problem. If she is given 13 problems, how long will it take her to solve every problem?
1.04 minutes
400
To solve 4.329 div 1.3 you should move the decimals. Show an equivalent problem you can solve to find the solution.
multiply both by 10:
43.29 div 13
400
What is the area of a triangle if the base is 4 and the height is two times the base?
16
500
You MUST line up the decimals when adding because ________________.
Response should include "place value."
500
You MUST line up the decimal when subtracting because ___________________.
Response should include "place value."
500
Evaluate 14.7 x 2.3
33.81
500
Evaluate 4.6 div 2
2.3
500
What is the LCM and GCF of 15 and 6.
LCM - 30
GCF - 3