Writing Equations
50 times the sum of 64 and 36 written as an expression
(64+36)x50 or 50x(64+36)
25x30=
Area model
750
100x8 __ 25x(4x9)
25x(4x9) or <
Jay needs 19 quarts more paint for the outside of his barn than for the inside. If he uses 107 quarts in all, how many gallons of paint will be used to paint the inside of the barn?
22 gallons
Convert 13,456 cm to m
13.456 m
What is 10x(250+45) in words?
Tens times the sum of 250 and 45
514x33=
16,962
93x(40+2) ___ (40+2)x39
93x(40+2) or >
For a field trip, the school bought 47 sandwiches for $4.60 each and 39 bags of chips for $1.25 each. How much did the school spend in all?
$99.39
Convert 160 cups to pints
80 pints
15 times the sum of 14 and 6 written as an equation
15x(14+6) or (14+6)x15
434x21=
Area model
9,114
50 twelves - 3 twelves ____ 48x12
48x12, or <
Jeanne makes hair bows to sell at the craft fair. Each bow requires 1.5 yards of ribbon. At the fabric store, ribbon is sold by the foot. If Jeanne wants to make 84 bows, how many feet of ribbon must she buy?
3,780 ft or feet
Estimate 697x82
48,000
Divide the difference between 1,200 and 700 by 5 written as an expression
(1,200-700)/5
216.20
60 twenty-fives minus 1 twenty-five ___ 61x25
61x25 or <
If the ribbon costs 10ยข per foot, what is the total cost of the ribbon in dollars? Explain your reasoning. Use the answer from $300 question.
$378.00
Each foot equals .10 so times 3,780 by .10 or you can divide 3,780 by 10 to get the correct answer.
Estimate 3.45x78,459
240,000
What is (560+440)x14 in words? What is the answer?
The sum of 560 and 440 multiplied by 14.
Answer: 14,000
1.25x39=
47.95
24x36__18 twenty-fours, doubled
(18x24)x2 or <
A manufacturer is making 1,000 times as many bows as Jeanne to sell in stores nationwide. Write an expression using exponents to show how many yards of ribbon the manufacturer will need. Do not calculate the total. Use the information from the $300 question to create your expression.
(1.5x84)x103
String A is 35 centimeters long. String B is 5 times as long as String A. Both are necessary to create a decorative bottle. Find the total length of string needed for 17 identical decorative bottles. Express your answer in meters.
35.7 m