Multiplying Three-Digit Numbers by 1
153 x 8
1224
1,008 x 9
9072
1972 x 2
3944
A student solved $432 \times 3 and got 1,266.
Explain what they did wrong
1296
Show how to use partial products to find
5 x 1,643.
8,215
244 x 6
1464
1,322 x 8
10,576
2431 x 9
21,879
To solve $2,135 \times 4$, a student wrote 8,420.
8,540
Use the expanded form of 3,569 to find
4 x3,569.
Show the work to get the POINTS
Answer:14,276
703 x 5
3,515
4,854 x 6
29,124
There are 2458 cups of coffee being sold at Starbucks each day. On average, cups of coffee are sold for $6. How much does Starbucks make on an average day?
14,748
he "Break Apart" Blunder
The Problem: 1240 x5
A student broke it apart as $(5 x1,000) + (5 x200) + (5 x 4).
They treated the "4" in 1,240 as 4 instead of 40.
Correction: It should be (5 x 40).
The correct total is 6,200.
Pedri earns $1,075 each month. How much does he earn in 6 months? Estimate to check that your answer is reasonable. Show your work
Pedri earns $6,450 in 6 months
862 x 5
4,310
5,904 x 7
41,328
2548 x 9
22,932
A student calculated $3,007x 6 and got 18,42.
18,042
A machine at a factory fills 2,928 boxes with oatmeal each hour. How many boxes of oatmeal does the machine fill in 7 hours? Estimate to check that your answer is reasonable. Show your work.
The factory makes 20,496 boxes.
There were 992 beads on 5 necklaces each. How many beads did they have altogether?
4,960 beads
There were 7778 baskets and each basket held 8 apples. Some were red and some were green. How many apples are there in total?
62,224 apples
A local movie theater sells 3,217 large tubs of popcorn every week. If each tub of popcorn costs $8, how much money does the theater make from popcorn sales in one week?
The theater makes $25,736 dollars in one week of sales.
Break apart problem
In a word problem, a student multiplied
($1,250 x8) and got 8,000
(1000x8)+ (200x8)+ (50x8)+ (0x8) =10,000
People who take part in the Holi festival throw colored powders in the air and on each other. At one event, each person who attends gets 4 packs of colored powders.A total of 1,125 people attend this event. How many packs of colored powders are given out?
4,500