PLACE VALUE AND PATTERNS
500 is 10 times as much as __________
50
To find 19 + (11 + 37), Lennie added 19 and 11. Then he added 37 to the sum. What property did he use?
Associative Property of Addition
Write the expression that shows “3 times the
sixth power of 10.”
3 x 106
293 X 9
2,637
Evaluate the numerical expression
(10 + 6 X 6) - 4 X 10
6
600 is 10 times as much as ____
60
DVDs are on sale for $24 each. Felipe writes the expression 4×24 to find the cost in dollars of buying 4 DVDs. How can you rewrite Felipe’s expression using the Distributive Property
possible answer:
(4 × 20) + (4 × 4)
63,000
139 X 12
1,668
what is the value of the expression?
30+(6÷3)+(3+4)
39
What is 1/10 of 3,000 ?
300
Complete the equation and tell which property is being used
9 X (30+7) = (9 X__) + (9+7)
30
Distributive property
Gary mails 103 flyers to clients in one week. How many flyers does Gary mail?
1,000 flyers
Estimate then solve
809 x 8
Estimate : 6,400
Answer: 6,472
28 books
20,000 is 1/10 of ____
200,000
Three friends’ meals at a restaurant cost $13, $14, and $11. Use parentheses to write two different expressions to show how much the friends spent in all. Which property does your
pair of expressions demonstrate?
$38; Possible expressions: (13 + 14) + 11;
13 + (14 + 11);
Associative Property of Addition
The moon is about 240,000 miles from Earth. What is this distance written as a whole number multiplied by a power of ten?
24 × 104 miles
Estimate then solve
92 X 68
Estimate: 6,300
Answer: 6,256
Write words to match the expression
35−(16+11)
possible answer:
Chris had $35 and spent $16 on pants
and $11 on a shirt.
200 is ____ times as much as 2
100
Marla did 65 sit-ups each day for one week.Use the Distributive Property to show an expression you can use to find the total number of sit-ups Marla did during the week.
(7 X 60) + (7 X 5)
A company has 3 divisions. Last year, each division earned a profit of $5 × 105. What was the total profit the company earned last year
$1,500,000
Estimate then solve
1,537 X 242
Estimate: 400,000
Answer: 371,954
Write an expression to match the words:
Monique had $20. She spent $5 on lunch and
$10 at the bookstore.
$20 − ($5 + $10)
or
$20 − $5 − $10