Exponents
Select all expressions that are equal to 3 x 103
3 x 1000
30 x 100
300 x 10
289 x 16
4624
Dr. Peterson works 178 hours each month. How many hours does she work in a year.
B 1470
A warehouse 127 delivery trucks were loaded with 48 packages on each truck.
A. Estimate the total number of packages on the trucks write an equation to model your work.
B. Did you calculate an overestimate or an underestimate explain how you know
A. Sample answer:50 x 130= 6500
B. Sample answer- Overestimate: 50>48, 139>127
Match each number on the left with an equivalent expression.
1. 1200
2. 120
3. 12
4. 12,000
1. 12x100
2. 12x101
3. 12x 100
4. 12 x103
There are 45 cans of mixed nuts. EACH can has 338 nuts. What is the missing number? Enter your answer in the box
Missing number is 5
There are 36 large fish tanks at the zoo. Each tank holds 205 gallons of water. How many gallons of water would it take to fill all of the tanks?
7380
The latest mystery novel cost $24.00 the table shows the sales of this novel by a bookstore.
A. what was the dollar amount of sales of the mystery novel on saturday? Write an equation to model your work.
B. What is the dollar amount of sales of the mystery novel on Friday write an equation to model your work
A. 157 x 24= 3768
B. 103x24=2472
Is the equation below correct ? Explain
D. The equation is incorrect. The product should have 2 zeros
A banana contains 105 calories. Last week, Brendan and lea ate a total of 14 bananas . How many calories does this represent
1470
Kai ordered 1012 baseball cards. Sharon ordered 5 times as many cards as Kai. Write and solve an equation to find b the number of baseball cards Sharron ordered.
1012x5=b
b= 5060
Roseanne has 142 songs on her MP3 player period Teresa has 11 times as many songs as Roseanne. How many songs does Teresa have?
1562