Review Unit 1-Number Relationships

Review Unit 1-Number Relationships

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Multiple Choice

Which number represents the decimal expanded notation?

(9 x 10) + (5 x 1) + (4 x 0.1) + (7 x 0.001)

• 9.547

• 95.47

• 95.407

• 94.007

Rounding

We round numbers by using tools like numberlines.

Rounding with a numberline

Label your numberline.

Label the ends.

Find your middle point.

Locate the number you are to round.

See to which end it is closest to.

Let's try the example together.

Rounding with a numberline

Label your numberline.

Label the ends.

Find your middle point.

Locate the number you are to round.

See to which end it is closest to.

Let's try the example together.

Multiple Choice

Round 7.16 to the nearest whole number

• 6
• 7
• 7.1
• 8

Multiple Choice

Round 12.345 to the nearest tenth

• 12.34
• 12.3
• 12.4
• 12.345

Multiple Choice

Round 5.476 to the nearest hundredth

• 5.47
• 5.48
• 5.49
• 6 

Multiple Choice

Mr. Davila has 9.387 liters of paint. What is this number rounded to the nearest hundredth?

• 9.40

• 9.39

• 9.38

• 9,46

Comparing and ordering decimals

When comparing and ordering decimals, we must watch out for the value of the digits.

If you see that your number has many decimal digits, DON'T automatically think that it will be greater. Sometimes it can be greater, but not always...

Check for the value of the digits!!!

Open Ended

Itati is comparing and ordering numbers. She wrote the following numbers from GREATEST TO LEAST.

12.79, 12.601, 12.68, 12.523

Is she correct? Explain.

Fill in the Blank

A scientist compared these two measurements.

16.043 __ 16.430

Which symbol belongs in the blank?

Multiple Choice

Find the sum of the following equation:

763.2 + 893.792

• 1,645.992

• 1,556.292

• 1,656.992

Multiple Choice

Tymir found $3.00 inside his jacket. He found 4 pennies by his lamp, 3 quarters under his bed, and one nickel. How much money did he find?

• 2.80

• 3.84

• 3.74

• 2.85

Multiple Choice

Jenna ran 3.2 miles. Carter ran 1.44 miles. How much farther did Jenna run? 

• 1.56 miles 
• 2.24 miles 
• 1.84 miles 
• 1.76 miles 

Multiple Choice

Jayla had $21.50 to spend at the store. She spent $0.55 on gum, $3.85 on pencils, and $9.84 on a book. How much money did Jayla have left after buying the gum, pencils, and book?

• $7.16

• $7.26

• $8.26

• $8.36

Multiple Choice

Elvis bought 5 bottles of orange juice at a market. Each bottle cost $2.43. How much did the orange juice cost all together?

• $7.43

• $10.05

• $12.15

• $20.05

Adding Fractions with models

Let's talk about how to add the fraction pieces together.

What do we know about fourths and thirds?

Subtracting Fractions with models

Let's talk about how to subtract the fraction pieces.

What do we know about fourths and twelfths?

Multiple Choice

Snow fell in Newton twice in one day. The town received 3/8 inch of snow in the morning and another 1/2 inch of snow in the afternoon. How many total inches of snow fell in Newton on that day?

• 1/8

• 3/10

• 5/8

• 7/8

Multiple Choice

Jolie had 1/8 bag of popcorn. Brydon had 2/3 bag of popcorn. How much popcorn did they have altogether?

• 19/24

• 3/24

• 1/2

• 3/11

Multiple Choice

5/7 + 1/2

• 6/9
• 2/3
• 3/14
• 1 and 3/14

Multiple Choice

2/3 + 1/9

• 3/12
• 7/9
• 1/4
• 2/3

Multiple Choice

1/2 + 3/5

• 4/7

• 11/10

• 1 and 1/10

• 2/5

Multiple Choice

Add, simplify if needed.

1/4 + 2/6 =

• $1\ \frac{1}{12}$

• $1\ \frac{2}{12}$

• 7/12

• 5/12

Multiple Choice

8/9 - 1/3 =

• 7/6

• 5/9

• 2/3

• 8/27

Multiple Choice

 $\frac{1}{4}-\frac{1}{8}=$  

•  $\frac{2}{8}$  

•  $\frac{1}{8}$  

•  $\frac{0}{4}$  

•  $\frac{2}{12}$  

Multiple Choice

 $2\ \frac{3}{4\ }-1\ \frac{1}{3}=$  

•  $3\ \frac{2}{12}$  

•  $1\ \frac{2}{1}$  

•  $1\ \frac{2}{12}$  

•  $1\frac{5}{12}$  

Multiple Choice

What is equivalent to the sum of
 $2\ \frac{3}{4\ }+3.60=$  

• 5.35

• 5

• 6.35

• 7.30

Multiple Choice

What is equivalent to the difference of 10 $\frac{7}{10}$  - 2.35

• 12.15

• 8.35

• 9.10

• 8.24