2-Digit Match
What is 21 x 14?
294
Solve 123 x 12.
1,476
Look at this work:
24
x 13
-----------
72
24
----
96
What critical step did the student forget?
They forgot the placeholder zero in the ones place on the second line (should be 240, total 312).
A bakery sells cupcakes in boxes of 12. If they sell 35 boxes in one day, how many cupcakes did they sell?
420 cupcakes
What do we call the two numbers that we add together to get the final product in standard multiplication?
Partial products
Solve 43 x 25.
1,075
What is 245 x 23?
5,635
A student solved 36 x 4 = 124 by doing 6 x 4 = 24 (wrote 4, carried 2), then 3 x 4 = 12. What did they do wrong with the carried 2?
They forgot to ADD the carried 2 to 12 (12 + 2 = 14, correct answer is 144).
An orchard has 115 apple trees. If each tree yields 24 pounds of apples, how many total pounds are harvested?
2,760 pounds
If you multiply a 3-digit number by a 2-digit number, what is the MAXIMUM number of digits the product can have?
5 digits (e.g., 999 x 99 = 98,901)
Multiply 68 x 32.
2,176
Multiply 408 x 35.
14,280
A student calculated 405 x 12 and got 4,860. Their partial products were 810 and 4,050. Is this answer correct? If not, why?
It IS correct! (810 + 4,050 = 4,860).
A school bus route is 48 miles long. If the driver completes the route 22 times this month, how many miles were driven?
1,056 miles
Solve 750 x 40 mentally using basic facts and powers of ten.
30,000
What is the product of 87 x 54?
4,698
What is 619 x 47?
29,093
A student wrote 53 x 26:
First line: 318
Second line: 1,060
Total: 1,478
Where is the mistake?
Addition error at the end! 318 + 1,060 = 1,378, not 1,478.
A hotel charges $125 per night. If a conference group books 36 nights total, what is the total bill?
$4,500
What is 9812 x 68?
667, 216
Multiply 99 x 89.
8,811
Solve 876 x 94.
82,344
Look at 307 x 42.
First partial product: 614
Second partial product: 1,280
Total: 1,894
What went wrong on the second partial product?
They forgot to add the carried 2 from 7 x 4 = 28 into the tens place (307 x 40 = 12,280). Correct answer: 12,894.
A factory produces 4805 toys per hour. If the factory runs for 45 hours this week, how many total toys were produced?
216, 225
DAILY DOUBLE CHALLENGE! Solve 9847 x 765.
7, 532, 955