Vocabulary/Basics
Area Model
Standard Algorithm
True or False
Place Value
100
What must you do when answering the questions on your CFA tomorrow?
Show ALL work!
100
What is the answer to the area model shown?
7 x 3.12 = 21.84
100
Set up this problem using standard algorithm:
5.68 x 7
5.68 x 7 = 39.76
100
An area model and standard algorithm are both ways we can multiply decimals by single digit numbers.
True
100
What place value is the 1 in:
1.56
Ones
200
What is an area model?
A rectangular model used to help us solve multiplication problems.
200
What is the product?
4 x 6.79 = 27.16
200
Find the product: 8.94 x 4 =
35.76
200
Ben went is measuring the cube that has 6 sides. Each side of the cube is 1.38 cm. Does this product equal 8.28?
True
200
What place value is the 3 in?
30.67
Tens
300
What is standard algorithm in multiplication?
A way of organizing a multiplication problem:
1.34
x 2
300
Find the product from the area model?
28.89
300
Find the product:
12.32 x 3
12.32 x 3 = 36.96
300
The 6 is in the thousands place value.
0.006
False.
The 6 is in the thousandths!
300
What place value is the 6 in?
53.06
Hundredths
400
What is a place value?
The numerical value that each digit has within a number
400
Complete an area model to answer the following:
2.13 x 2
2.13 x 2 = 4.26
400
Stacey went to the farmers market and bought 3 apple ciders for $2.59 each. How much did she spend?
2.59 x 3 = 7.77
Stacey spent $7.77 at the farmers market.
400
Maria bought 2 grapefruits for 1.27 each. She said she spent more that $2.50 is this correct?
True. Maria spent $2.54.
400
What place value is the 9 in?
56.90
Tenths
500
What is a product?
The answer to a multiplication problem.
500
Todd bough 5 treats that costed him $3.52 each. How much did Todd spend in total? Use an area model to find the solution.
5 x 3.52 = 17.6
500
Miles solved the problem 7 x 2.6 and got the answer 14.42. Is his answer correct? Explain how you know.
Miles is incorrect because 7 x 2.6 = 18.2. He is incorrect because he forgot to carry his 4.
500
Martin bought 4 bags of candy for halloween. They were $5.61 each. He said $20 will be enough to pay for all the candy. Is he correct?
False. The candy costs $22.44.
500
What place is the 7 in?
45.907
Thousandths