Subtract these decimals: 5.5-0.41
5.09
Add these decimals: 0.195+1.06
1.255
Divide these decimals: 30.9 ÷ 3
10.3
Multiply these decimals: 0.12 x 7
0.84
True or False?
When dividing decimals, you always need to get rid of the decimal first.
False
Subtract these decimals: 0.66-0.58
0.08
Add these decimals: 1.82+0.013
1.833
Divide these decimals: 60.5 ÷ .5
121
Multiply 4.4 x 5.3
23.32
When multiplying decimals using the standard algorithm you do not need to line up the decimals.
True
Subtract these decimals: 0.37-0.09
0.28
Add these decimals: 1.40+0.108
1.508
Divide these decimals: 1.272 ÷ .06
21.2
Multiply these decimals: 1.83 x 0.3
0.549
The answer to addition, subtraction, multiplication, and division equations all have a name. What are the names of all four?
Addition - sum
Subtraction- difference
Multiplication - product
Division - quotient
Mrs. Powell had $12.75. She bought a notebook for $4.38. How much money does Mrs.Powell have left?
Mrs. Powell has $8.37 left.
A juice bottle contains 1.45 liters of apple juice. A second bottle contains 0.78 liters of orange juice.
How many liters of juice are there in total?
There are 2.23 liters of juice in total.
Divide these decimals: 3.12 ÷ 1.5
2.08
Create and area model to represent the product of 6.7 x 2.5
16.75 will be the ending product.
In your own words, describe what a dividend, divisor, and quotient represent in a division problem.
Answers will vary...
Dividend: The part that's being divided
Divisor: How you're splitting up the dividend
Quotient: The groups created by dividing up the dividend.
Ribbon was 5.60 meters long. After decorating a gift, 2.85 meters were used.
How many meters of ribbon remain?
2.75 meters of ribbon remain
Create a model, drawing, or story problem that illustrates the sum of 1.26 + 0.57
Answers will vary.
What equation does the model represent?
*See slideshow for model*
2.80 / 4 or 2.80 / .7
Multiply these decimals: 1.246 x 3.4
4.2364
Come up with a story problem that would require someone to multiply AND divide decimals.