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Multiplication Comparisons
Multiplying by 10's, 100's, and 1000's
Estimating Products
Distributive Property and Partial Products
Multiplication with Regrouping
100
Write the equation for: "2 times as many as 8 is 16."
What is 2 x 8 = 16?
100
7 x 50 =
What is 350?
100
ESTIMATE: 4 x 472 =
What is 2,000?
100
Which shows the DISTRIBUTIVE PROPERTY of 5 x 123? a. 5 x 100 x 20 x 3 b. (5 x 100) + (5 x 20) + (5 x 3) c. 5 + 100 + 20 + 3 d. (500) x (100) x (15)
What is B?
100
32 x 8 =
What is 256?
200
In 5 x 4 = 20, there is ____ times as many as 4.
What is 5?
200
6 x 80 =
What is 480?
200
ESTIMATE: 6 x 98 =
What is 600?
200
Write this equation using the DISTRIBUTIVE PROPERTY. 3 x 56 = (___ x ____) + (___ x ____)
What is (3 x 50) + (3 x 6) ?
200
37 x 9 =
What is 333?
300
Draw a model to help you... (hint: remember drawing the boxes!) There are 5 times as many dogs than cats at the farm. If there are a total of 18 animals at the farm, how many of them are dogs?
What is 15 dogs?
300
4 x 300 =
What is 1, 200?
300
ESTIMATE: 7 x 307 =
What is 2,100?
300
182 x 6 = a. 600 + 480 + 12 b. 600 + 48 + 12 c. 60 + 48 + 12 d. 600 + 48 + 6
What is A?
300
550 x 9 =
What is 4,950?
400
Sari has 3 times as many pencil erasers as Sam. Together they have 28 erasers. How many erasers does Sam have?
What is 7 erasers?
400
8 x 7,000 =
What is 56,000?
400
ESTIMATE: Find the two numbers this answer is between. 3 x 567 =
What is 1,500 and 1,800?
400
Write the 3 partial products of this problem, 8 x 231?
What are 1,600 + 240 + 8?
400
2,854 x 9 =
What is 25,686?
500
Rafael counted a total of 40 white cars and yellow cars on the parking lot. There are 9 times as many white cars as yellow cars. How many white cars did Rafael count?
What is 36 cars?
500
2 x 5,000?
What is 10,000?
500
ESTIMATE: Find the two numbers this answer is between. 8 x 469 =
What is 3,200 and 4,000?
500
A factory produces 2,354 hammers every hour. Which expression can be used to find out how many hammers the factory produces in 3 hours? a. (3 x 2,000) + 354 b. (3 x 2,000) + (3 x 300) + 54 c. (3 x 2,000) + (3 x 300) + (3 x 50) + (3 x 4) d. (3 x 2,000) + (300 + 50 + 4)
What is C?
500
9,614 x 3 =
What is 28,842?