Download multiplication, estimation, and number properties study guide

Name:_______________________
Teacher:______________
MULTIPLICATION, ESTIMATION, AND NUMBER
PROPERTIES STUDY GUIDE
Test date:
Study Guide Due:
What I need to know:
1. How to multiply (2 digit by 1 digit and 2 digit by 2 digit) (MA 1, 3.2,
DOK 2)
2. How to use the distributive property of multiplication. (MA 4, 3.2,
DOK 2)
3. How to estimate products and round numbers. (MA 1, 3.2, DOK 3)
4. How to use a number sentence or expression when solving a problem
(MA 4; 1.10; DOK 2)
How I can study:
1. Pay attention in class and ask questions! If you don’t understand ask
for extra help.
2. Do the Student Workbook pages that align with this topic. Student
Book pages: 84-88, 165-166, 169-171, 173-174, 237-238, 241-242,
245-246, 249-250 (all of these pages deal with multiplication)
3. Do the Study Island Assignments (Estimation, Multiplication, and
Properties of Arithmetic).
4. Do the Study Island Common Core Assignments (Estimation and
Multiplication)
*The test will only cover multiplication (and some division word problems).
Some of the Study Island assignments above also have subtraction and
addition practice.
Practice Problems:
SOLVE:
1.
98 x 4 = ____________
2.
83 x 47 = ___________
3.
4.
31 x 64 = ___________
76 x 39 = ____________
ESTIMATE:
5. In the auditorium there are 43 rows of 21 chairs each. Estimate how
many chairs there are in all.
6. Estimate the product. 86 x 68 =
7. Belinda earns $71 from babysitting on one week. What is the best
estimate of the number of dollars Belinda can earn in 13 weeks?
8. Gerry has 49 bags of coins in his coin collection. Each bag contains 81
coins. Estimate how many coins Gerry has in his coin collection?
9. Estimate the product.
91 x 79 = ___________
ANSWER:
10. Which of the following expressions is equal to the expression below?
29 x (19 x 92) =
A. 29 x (19 +92)
C. (29 x 19) x 92
B. (29 x 19) x 102
D. (29 x 19) + 92
11. Which answer uses the distributive property to simplify the following?
11 x (12 + 8)
A. (11 x 12) + 8
C. (11 x 12) + (11 x 8)
B. 11 x 12 x 8
D. 11 + 12 + 8
12. What is another way to write the following equation?
36 x 18 – 36 x 12
A. 36 x (18 + 12)
C. 12 x (36 – 18)
B. 36 + (18 – 12)
D. 36 x (18 – 12)