Instructions: Use associative and distributive properties as well as estimation to compute products of multi-digit numbers.
Topic A: Lessons 1-2
5.NBT.1, 5.NBT.A.2
Question 1
1.
Use mental math and your knowledge of the distributive and associative properties of multiplication to solve.
30 x 500 =
(Type the answer only. Do NOT re-type the question)
Question 2
2.
700 x 400 =
Question 3
3.
60 x 500 =
Question 4
4.
4,000 x 90 =
Question 5
5.
130 x 300 =
Question 6
6.
4,300 x 40 =
Question 7
7.
2,600 x 50 =
Question 8
8.
70 x 320 =
Question 9
9.
Round the factors to find the closest estimate.
4,897 x 77
Question 10
10.
Round the factors to find the closest estimate.
6,840 x 35
Question 11
11.
The estimated answer to a multiplication problem is 800,000. Which of the following expressions could result in this answer?
Question 12
12.
Round the factors and estimate the product:
9,832 x 39
Question 13
13.
For which expression would 300,000 be a reasonable estimate?
Question 14
14.
Round each factor, then find the estimated product.
582 x 23 ≈ ____________ x _______________ = _______________
Drag and drop from left to right to show your answers.
You will only use three of the answer choices on the left.
500
Question 15
15.
Tickets to a concert are $30 for adults and $20 for children. There are 50 adults and 80 children attending the concert. How much money will they all pay? Show your work.