Topic 1 Review

Fractions Multiply and Divide

100

What is  2/3  x 3/6 = 

1/4

200

How do Multiplying a Fractions with a fraction?

When multiplying two fractions, you multiply straight across. Numerator x Numerator and Denominator X Denominator. then simplify using a t chart or division if the answer id a improper fraction

300

How do you Convert a Mixed fraction?

To convert a mixed number to a fraction, multiply the denominator by the whole number and add the product to the numerator, leave the denominator unchanged.

400

What is 1 and 2/4  X  3 and 5/6 = 

5 and 3/4 

500

what is 8 and 4/12  divided by  3 and 3/4 = 

2 and 2/9

Decimals Subtracting and Adding

100

3.14 + 5.12 = 

What is 8.26?

200

34.63 - 27.9=

What is 6.73?

300

3 + 4.55=

What is 7.55?

400

6 - 2.33=

What is 3.67?

500

1124.09 - 567.87=

What is 556.22?

Decimals Multiplying and Dividing

100

What is 3.6 / 6= 

0.6

200

What is 8.5 / 0.5 =

17

300

What is 7.2 / 0.9 = 

8

400

What is 15.0 X 5.8 = 

87.00

500

What is 51.6 X 3.9 =

201.24

Math Rules

100

What does the rule KCF mean when dividing fractions 

Keep the first fraction

Change the division sign to multiplication 

flip the second fraction to its reciprocal

200

What is the rule for adding and subtracting decimals ? 

1) Line up the decimal points vertically. Fill in any 0's where necessary. 2) Add or subtract the numbers the from right to left. 3) Place the decimal point in your answer so that it lines up vertically with the numbers being added or subtracted.

300

What is the rule for multiplying decimals 

1st count /add  all the decimal places  for each number then remove them

2nd Multiply 

3rd replace the decimals places back into your answer

400

How do you divide a decimal with a decimal?

1. Move the decimal point in the divisor to the right until it is a whole number.

1. Move the decimal point in the dividend to the right by the same number of places as the decimal point was moved to make the divisor a whole number.
2. Then divide the new dividend by the new divisor. or do long division

500

When multiplying or dividing fraction, if your answer is an improper fraction what must you do ?

 convert an improper fraction to a mixed fraction by dividing the numerator by the denominator, write down the quotient as the whole number and the remainder as the numerator on top of the same denominator.

then use the t chart to see if you could simplify the fraction part of your answer. 

Vocabulary

100

What does "sum" mean?

The answer to an addition problem. 

200

what does equivalent mean?

equal in value 

300

What is a reciprocal?

When we multiply two numbers and the product is 1 they are reciprocals.

400

What does product mean? 

the answer to a multiplication problem 

500

What does borrowing mean in math?

When subtracting and you do not have enough in a column you have to borrow a base ten or 1 from the column in front .