Vocabulary
Multiplying Whole Numbers
Multiplying Decimals
Algebra
Word Problems
100
Numbers that are multiplied to get a product.
What is a factor?
100
Demonstrate how to use the Commutative Property of Multiplication for 187 x 20
What is 20 x 187?
100
Create a multiplication sentence that describes the shaded areas of the grid. Then solve for the product.
What is 0.3 x 0.4 =0.12?
100
Evaluate the expression for n = 7 and n = 9.
0.2n
n = 7 What is 1.4? n = 9 What is 1.8?
100
At three months, Mia weighs 6 pounds more than she did at birth. Use w for Mia's weight at birth. Write an expression to show her weight at 3 months.
What is w + 6?
200
A letter, such as n, that stands for a number in an expression or an equation
What is a variable?
200
Estimate the product. You must demonstrate how you estimated.
24 x 39 x 3
What is about 2,400? (20 x 40 x 3)
What is about 3,000? (25 x 40 x 3)
What is about 5,000? (25 x 40 x 3)
What is about 4,000? (20 x 40 x 5)
200
Complete the pattern. Then describe the rule that tells how to find the product.
0.035 x 10
0.035 x 100
0.035 x 1,000
What is...
0.035 x 10 = 0.35?
Since 10 has 1 zero, I move the decimal point 1 place to the right.
0.035 x 100 = 3.5?
Since 100 has 2 zeros, I move the decimal point 2 places to the right.
0.035 x 1,000 = 35?
Since 1,000 has 3 zeros, I move the decimal point 3 places to the right.
200
Solve the equation. Explain how you solved the equation.
n/4 = 4
What is n = 16? I know that 4 x 4 equals 16, so 16/4 = 4.
200
Write a problem that would require you to solve the equation x/2 = 36.
Example: Ms. Idara is reading a book. She has finished reading half of the total number of pages in the book, and she has read 36 pages so far. How many pages are in the entire book?
300
The expression of a fraction in the base of ten, using a decimal point to separate whole numbers from the fractional part.
What is a decimal?
300
Find the product. Then tell what pattern or property could be used.
700 x 300
What is 210,000?
I know that 7 x 3 is 21. So I can use that to help me solve, and then I add the number of zeros that are in the factors at the end.
300
Estimate the product. Explain how you estimated.
44.51 x 72.3
What is about 3,240? (45 x 72) I rounded both numbers to the nearest whole number.
What is about 2,800? (40 x 70) I used compatible numbers that are easy to multiply
300
Write two word phrases for the algebraic expression 9f.
Example:
What is 9 times a foot?
What is the product of 9 and a number?
What is 9 multiplied by a number?
300
Yvette runs 6.62 miles per hour. How far will she travel in 4 hours?
Show your work and answer in a complete sentence.
What is Yvette will run 26.48 miles in four hours?
6.62
x 4
26.48
400
A mathematical phrase involving a variable or variables, numbers, and operations
What is an algebraic expression?
400
Find the product. You must show your work
423 x 78
What is 32,994?
423
x 78
3384
29610
32,994
400
Insert the decimal point in the product to make the equation true. Explain your answer
2.647 x 7= 18529
What is 18.529?
I put the decimal point between the 8 and the 5 because there are 3 decimal places after the decimal point in 2.647. This means I need to start at the farthest place to the right and count three decimal places to the left. That is where I will put my decimal point.
400
Write the word phrase as an algebraic expression. Then explain how you found the algebraic expression.
A length decreased by 12.
What is l - 12?
I know that decrease means to get less, so I used subtraction. Since the length decreased by 12, that means the length is 12 less than the original starting length, so we use a variable to represent the length and subtract 12.
400
Paula has completed 3 tenths of a trail that is 8 tenths of a mile long. How far has she walked?
Write out the multiplication sentence and then find the product.
What is 0.3 x 0.8 = 0.24. She has walked 0.24 miles?
500
Products found by breaking one of the factors into ones, tens, hundreds, and so on, and then multiplying each of these by the other.
What is partial products?
500
Use the Distributive Property to multiply. You must show out your steps. Then explain how you used the Distributive Property
197 x 15
Example responses:
What is 2,955?
197 x (10 + 5)
(197 x 10) + (197 x 5)
1,970 + 985
2,955
What is 2,955?
(200 - 3) x 15
(200 x 15) - (3 x 15)
3,000 - 45
2,955
500
Find the product. Make sure to show your work and tell how you found the product.
5.31 x 1.08
What is 5.7348?
5.31
x 1.08
4248
0000
53100
5.7348
I multiplied like I would a whole number. I counted the decimal places in each factor (2 in 5.31 and 2 in 1.08). The total number of decimal places in the product is 4, so I started at the right and went 4 places to the left, then added my decimal point.
500
Solve the equation n + 25 = 33. Test the values of n and give the correct value.
n = 6, 7, or 8
6 + 25 = 31
7 + 25 =32
8 + 25 = 33.
What is n = 8?
500
Turkey sells for $1.25 per pound. How much will a 10.6 pound turkey cost? Make sure to show your work.
**Bonus: Create an algebraic expression to solve for the cost of a 10.6 pound turkey.
What is A 10.6 pound turkey will cost $13.25?
$1.25
x 10.6
750
0000
12500
13.250