Relearn Unit 1

Relearn Unit 1

Divide Fractions
LCM Word Problems
Sum, Product, Difference, Quotient
Decimals

Divide Fractions

• KEEP

• CHANGE

• FLIP

Remember, there is always a 1 under every whole number!

3 = 3/1   9 = 9/1    8 = 8/1

Changing a MIXED number to an improper fraction:

2 2/5 = 12/5         1 1/2 = 3/2 

Multiple Choice

When working out 1/2 ÷ 1/8, you would write:

• 1/2 x 8/1

• 2 x 8

• 2 x 1/8

Multiple Choice

Solve: 8 ÷ 1/4

• 2

• 1/32

• 32

• 1/2

Multiple Choice

Convert 5 2/5 into an improper fraction:

• 12/5

• 27/5

• 27/2

Multiple Choice

Solve: 1 1/5 ÷ 1/2

• 3/5

• 5/12

• 12/5

If Sally ran 14.5 miles and Frankie ran 3.375 miles, how much farther did Sally run than Frankie?

What operation do we need to use?????

Draw a picture to help!!!!!!

Add & Subtract Decimals

• LINE UP

• LINE UP

• LINE UP

• LINE UP

14.5 - 3.375

Write it now and DON'T FORGET to line up the decimals! What goes above all those numbers?

Complete the subtraction problem.

Be careful when you regroup .

Multiple Choice

Find the difference:

35.4 and 2.645

• 32.744

• 32.645

• 33.8655

• 32.755

Multiple Choice

Find the difference:

138.5 and 23.155

• 116.445

• 115.345

• 11.534

• 116.256

Add & Subtract Decimals

• LINE UP

• LINE UP

• LINE UP

• LINE UP

Find the sum of 77 and 32.586 

(sum means add)

REMEMBER: after every whole number, there is a decimal!

Now, solve.

PRODUCT means MULTIPLY!!!!!!

• DO NOT LINE UP

• THE NUMBER WITH THE MOST DIGITS GOES ON TOP

• INCLUDE THE DECIMAL WHEN YOU ARE FINISHED MULTIPLYING

• COUNT THE NUMBER OF DIGITS AFTER THE DECIMALS

• COUNT FROM RIGHT TO LEFT IN THE PRODUCT.

Find the product of 1.23 and 4.2

Which number has the most digits?

Multiple Choice

Find the product of 3.42 and 1.2

• 41.4

• 4.104

• 41.04

• 410.4

Multiple Choice

Quotient means

• add

• subtract

• multiply

• divide

Multiple Choice

Product means

• add

• subtract

• multiply

• divide

Multiple Choice

Difference means

• add

• subtract

• multiply

• divide

Multiple Choice

Repeated addition is the same as...

• add

• subtract

• multiply

• divide

Multiple Choice

If I have something that is being separated into EQUAL amounts, what operation would I use?

• add

• subtract

• multiply

• divide