unit 1 study guide
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Unit 1 Study Guide. Find the Product. Find the GCF of 24 and 48. What is the first step when you add or subtract decimals?. Find the LCM of 8 and 22. 59.28 ÷ 3.8 =. 14. Change to an Improper Fraction. 15.07 + .98 + 9.23 + 102.034 =. Find the GCF and LCM Of 18, 24, and 8. - PowerPoint PPT PresentationTRANSCRIPT
Unit 1 Study Guide
Find the Product
.𝟔×.𝟐𝟑=¿
𝟑𝟏𝟒÷𝟑𝟓
=¿
Find the GCFof
24 and 48
𝟓𝟓𝟕−𝟐
𝟑𝟓
=¿
What is the first step when you add or subtract decimals?
𝟕𝟖×𝟒𝟔
=¿
Find the LCM of
8 and 22
59.28 ÷ 3.8 =
14
Change to an Improper Fraction
𝟏𝟏𝟕𝟖
15.07 + .98 + 9.23 + 102.034 =
𝟐𝟐𝟓𝟏𝟐
+𝟑𝟒𝟕𝟏𝟖
=¿
Find the GCF and LCM Of
18, 24, and 8
What do you call this type of decimal?
.312312
A new book at the store costs $53.07. You have a $22.78 credit at the store. How much money do you need to bring to the store to buy the book?
Adding Fractions1. Set up Vertically2. Find Least Common Denominator 3. Add4. Simplify
Subtracting Fractions1. Set up Vertically2. Find Least Common Denominator 3. Borrow if needed4. Subtract5. Simplify
Multiplying Fractions/Mixed Numbers1. Set up in fraction form2. Multiple numerator by numerator3. Multiply denominator by denominator4. Simplify
Dividing Fraction/Mixed Numbers1. Set up on fraction form2. Keep first fraction the same3. Change division to multiplication4. Multiply by the reciprocal5. Simplify
Tom rode his bike 2/5 of a mile and walked another 1/4 of a mile. How far did he travel?
Your grandma's chocolate chip cookie recipe requires 3/4 of a cup of flour. If you're making a double recipe, how much flour should be used?
Little John had $8.50. He spent $1.25 on sweets and gave to his two friends $1.20 each. How much money was left?
A piece of cloth measuring 48 m in length is cut to 3/4 of its length. How many meters in length are there in the piece that has been removed?
Hot dogs a sold in packages of 8 and hot dog buns are sold in packages of 12. If you want to have the same number of hot dogs and hotdog bums, how many packs of each do you have to buy?
Adding and Subtracting Decimals1. Line up decimals2. Add zeros if wanted3. Add or Subtract
Multiplying Decimals1. Set up with problem with the number that has the most digits on top2. Multiply3. Count the total number of decimal places in the numbers being multiplied4. Place the decimal using the previous number counted (Count the places from right to left)
1. 2.234 x 7 2. 2.234 x 7 1 5 6 3 8 3. 2.234 ----> 3 places x 7 ----> 0 places 1 5 6 3 8 4. 2.234 x 7 1 5.6 3 8 <---- place decimal 3 places counting from right to left
Multiplying Decimals Example
Dividing Decimals
For problems with decimal in dividend only (dividend ÷ divisor = quotient or number inside the box)
1. Move decimal up2. Divide For problems with decimal in divisor (dividend ÷ divisor = quotient or number outside the box) 3. Move decimal in divisor (number outside the box)4. Move decimal in dividend (number inside the box)5. Move decimal up6. Divide
Dividing Decimal Example
2.244 ÷ .32
1.
.32 12.244 Move decimal outside 2 places
2.
32 12.244 Move decimal inside 2 places .
3.
32 1224.4 Move decimal up
4. Divide