Multi-Digit Multiplication
A class of 28 students each needs 3 folders, and each folder costs $2. How much will the class spend in total?
What is 28×3×2=$168
A class scored the following on a math quiz: 75, 80, 85, 90, 90, 95, 100. What is the Mean Absolute Deviation (MAD)?
What is Mean = 88.57 (rounded), deviations ≈ 13.57, 8.57, 3.57, 1.43, 1.43, 6.43, 11.43 → MAD ≈ 6.35
Divide 1,248 by 12.
What is 1,248÷12=104
Plot the points A(3, 4), B(3, -2). What is the distance between A and B?
Distance = |4 - (-2)| = 6 units (vertical)
2.5 lb bananas at $1.20/lb. How much are the bananas?
2.5×1.20=$3.00
A farmer harvests 126 apples each day for 12 days. How many apples did the farmer harvest?
What is 126×12=1,512 apples
The heights (in inches) of students are: 58, 62, 60, 65, 60, 61, 59. Identify the median and mode.
Median = 60; Mode = 60
2,496 marbles in packs of 24. How many packs do you need?
2,496÷24=104 packs
A point is reflected across the x-axis. If the original point is (-2, 5), what is the reflected point?
(-2, -5)
Spend $12.45 + $7.99 + $3.56 from $30. How much did you spend and how much is left, if any?
Total spent: $24.00 → Remaining: $6.00
A factory produces 245 pencils every hour. How many pencils in 16 hours?
What is 245×16=3,920 pencils
The data set: 14, 16, 20, 22, 28 has a range of 14. If a new data point is added and the range increases to 20, what could the new data point be?
New max could be 34 (34 - 14 = 20); so the new data point is 34.
5,120 books in boxes of 64. How many boxes of books are there?
What is 5,120÷64=80 boxes
A rectangle has vertices at (1,1), (1,4), (5,1), and (5,4). What is the area of the rectangle on the coordinate plane?
Length = 4, Width = 3 → Area = 12 square units
Earn $18.75 for 4 weeks. How much will you have at the end of 4 weeks?
18.75×4=$75.00
38 trucks each carry 135 boxes. How many total boxes are carried by the trucks?
What is 38×135=5,130 boxes
A survey recorded how many books students read in a month: 3, 5, 5, 6, 6, 6, 8. If the student who read 8 books was incorrectly recorded and actually read 12, how does this affect the mean?
Original mean = 39/7 ≈ 5.57; New mean = 43/7 ≈ 6.14 → Mean increases
3,642 people across 13 buses. How many people are on each bus?
What is 3,642÷13=280 per bus
A triangle has points at (0,0), (4,0), and (4,3). What is the perimeter of the triangle?
Legs = 4, 3; hypotenuse = 5 → Perimeter = 4 + 3 + 5 = 12 units
Tank holds 125.5 gal, use 13.25/day. How many full days can you drive?
125.5÷13.25=9.47 → 9 full days
147 tickets sold each night for 23 nights. How many tickets were sold at the end of the 23 nights?
What is 147×23=3,381 tickets
Trinity scored 80, 85, and 90 on three tests. What score does she need on her fourth test to have an average of 88?
(80 + 85 + 90 + x)/4 = 88 → x = 97
$3,456 over 24 weeks.
What is 3,456÷24=$144 per week
What is the midpoint between (-3, 4) and (5, -2)?
Midpoint = ((-3+5)/2, (4+(-2))/2) = (1, 1)
Split $256.40 among 8 friends. How much will each friend receive?
256.40÷8=$32.05 per friend