Module 2, Topic B, Lessons 3 - 9: The standard algorithm for multi-digit and whole number multiplication.
Show your work for every problem on the paper copy of your test. Use grid paper if you need it.
5.OA.1, 5.OA.2, 5.NBT.5
Question 1
1.
Solve using the method you prefer. Use estimation to check the reasonableness of your answer.
456 x 42 =
(1 point for correct answer, 1 point for correct estimation)
Question 2
2.
343 x 21 =
Question 3
3.
371 x 302 =
Question 4
4.
481 x 352 =
Question 5
5.
Which expression matches the statement "2 times the difference between 49.5 and 37.5"?
Question 6
6.
Adrienne solved 293 x 47 in the following way:
293
x 47
2051
+1172
3223
What was her mistake?
Question 7
7.
Larry claims that (14 + 12) x (8 + 12) and (14 x 12) + (8 x 12) are equivalent because they have the same digits and the same operations.
Is Larry correct? Why or why not?
Question 8
8.
Draw an area model and then solve using the standard algorithm.
24 x 21 =
(Correct area model: 1 point, Correct standard algorithm: 1 point)
Question 9
9.
Jeffery bought 203 sheets of stickers, each sheet has 12 stickers. He gave away 907 stickers to his family and friends on Valentine's Day. How many stickers does he have left? Show all of your work on your paper test.
Question 10
10.
Each of the 25 students in Mr. McDonald's class sold 16 raffle tickets. If each ticket costs $15, how much money did Mr. McDonald's students raise?