Multiples of 10, 100, and 1,000
Estimation
Area model
Properties of Multiplication
Word Problems
100
6 x 30 =
180
100
Estimate:
259 x 3=
300 x 3 = 900
100
What are the partial product for 327 x 9?
2700; 180; 27
100
7,246 x 0=
Which property?
Zero Property
100
576 Blackberry Bliss cupcakes
200
900 x 3 =
2,700
200
Estimate
89 x 5
90 x 5 = 450
200
Which expression has the same value as 3 x 156?
A. (3 x 1) + (3 x 5) + (3 x 6)
B. (3 x 100) + (3 x 50) + (3 x 6)
C. (3 x 100) + (3 x 5) + (3 x 6)
D. (3 x 1) + (3 x 50) + (3 x 600)
B
200
1 x 6,247 =
Which property?
Identity Property
200
136 Surprise Assortment cupcakes
300
60 x 80 =
4,800
300
Estimate:
1,965 x 7
2,000 x 7 = 14,000
300
What are the partial products when finding 2,361 x 4? Find the product as well.
Partial Products: 8,000; 1,200, 240, 4
Product: 9,444
300
37 x 45 = 45 x 37
Which property?
Commutative Property
300
Rudy's Pizza makes 317 pizzas and 54 subs every day. How many items are made in 3 days?
1,113 items.
400
7,000 x 30 =
210,000
400
A bakery sells 427 doughnuts each day. In 5 days, about how many doughnuts were sold.
400 x 5 = 2,000
400
In one month, a deli sold 267 sandwiches. If the same number of turkey sandwiches were sold for 4 months in a row, how many turkey sandwiches would be sold in all?
1,068 turkey sandwiches.
400
4 x (6 x 3) = (__ x 6) x 3
What is the missing number and what property?
4
Associative Property
400
There are 22 horses in the field of a ranch. There are three times as many horses in the barn and two times as many being trained on a course. How many horses are there in all?
132
500
If Jonathan multiplied one number that ended in two zeros and another number that ended in three zeros, how many zeros would be in his product?
5 zeros
500
Mr. Brouard would like to purchase a laptop computer for each of his 2 daughters and 1 son. The computers each cost $387. Mr. Brouard thinks the total cost should be about $1,100. Is this amount reasonable? Explain.
Yes. 3 x 387 is about 3 x 400 or 1,200. Since the actual cost is less than 400, the actual cost will be less than 1,200. Therefore, 1,100 is a reasonable estimate.
500
Mr. Brouard would like to purchase a laptop computer for each of his 2 daughters and 1 son. The computers each cost $387. How much was the total cost for the computers.
$1,161
500
Select all the expressions that could be used to find 327 x 9.
327 + 9
9 x 327
9 x (300 + 20 + 7)
(9 x 300) + (9 x 20) + (9 x 7)
9 + (300 + 20 + 7)
9 x 327
9 X (300 + 20 + 7)
(9 x 300) + (9 x 20) + (9 x 7)
500
1,890 more tuna sandwiches
Sample Answer: 189 x 3 = 567; 567 - 189 = 378; 378 x 5 = 1,890