Unit 2 Review - Expression/Equations & Mutliplication

Unit 2 Review - Expression/Equations & Mutliplication

by Angie Mitchell

Multiple Choice

In what position would 21.065 be, if the following numbers were ordered from GREATEST to LEAST? 

(HInt - 1. Line up the decimals by place value. 

2. Fill in empty place values with ZEROS 

3. Compare from LEFT to Right)

• FIRST

• SECOND

• THIRD

• FOURTH

Multiple Select

Which number would round to 21.1 when rounded to the nearest tenth?

(HInt - 1. Line up the decimals by place value. 

2. Fill in empty place values with ZEROS 

3. Compare from LEFT to Right)

• 21.650

• 21.065

• 21.07

• 21.15

​When multiplying decimals,

1. you multiply like NORMAL.

2. then you add your decimals back and count how many numbers are behind the decimal place in the factors.

3. Move the decimal to the left that many places in the product.

https://youtu.be/JfE3lDGPCu0

Multiple Choice

Which equation can be represented by the shaded part of the model?

• 80 x 40 = 3,200

• .08 x 0.04 = .32

• 0.80 x .40 = .32

• .08 x 0.40 = .032

Multiple Select

What addition and multiplication problem does this picture represent?

• 0.6 + 0.6 + 0.6 + 0.6 = 2.4

• 4 x 0.6 = 24

• 0.6 x 0.6 x 0.6 x 0.6 = 2.4

• 4 x 0.6 = 2.4

Multiple Choice

Michael rode his bike 5 days last week.

He rode 3.01 miles each day.

How many total miles did he ride his

bike last week?

• 1.505 miles

• 3.06 miles

• 15.05 miles

• 8.01 miles

Fill in the Blank

4. Find the PRODUCT of 6.7 and 8.5

​Remember when solving multi-step problems you must solve the problems in the correct order.

​1) P - parentheses & brackets

• ​from the inside out

​2) E - Exponents (no exponents in 5th grade)

​3) M or D - Multiply OR Divide

• ​from left to right

​4) A or D - Add or Subtract

• ​from left to right

​Take a moment to sketch a model drawing to visualize the problem.  

Multiple Choice

Miguel had $12 in his piggy bank.

He received $50 for his birthday. He put half of his birthday money in his piggy bank.

Which equation can be used to find c, the total

amount of money in Miguel’s piggy bank?

• 20 - (12 + 0.50) = c

• 50 – (20 + 12) = c

• c = 12 + 50 ÷ 2

Multiple Choice

Miguel had $12 in his piggy bank.

He received $50 for his birthday. He put half of the money he received in his piggy bank.

What is the total amount the total

amount of money in Miguel’s piggy bank?

• $62

• $31

• $37

• $25

Multiple Choice

Roland bought 2 cases of soda. Each case contained 24 cans.

He needed 60 sodas.

How many more sodas does he need to purchase?

Which equation can be used to find s, the number of sodas he needs to purchase?

• s = 60 – 24 x 2

  s = 12

• s = 2 x 24 – 60

  s = 12

• s = 60 – 24 x 2

  s = 72

• s = 60 - 24 ÷ 2

  s = 48

Fill in the Blank

The table shows the number of students in different grades at Avery’s Academy. For a fundraiser, every student collected 15 coins.

In total, how many coins did the students collect?

Poll

How do you feel about:

1. multiplying whole numbers

2. multiplying decimals

3. solving equations

overall?