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Unit 1: Whole numbers--Basic help for order of operations
Unit 1: Whole numbers--Basic help for order of operations
When working with equations, it is important to do things in the correct order.
Parenthesis
Exponents
Multiplication and Division or Division and Multiplication (from left to right)
Addition and Subtraction or Subtraction and then Addition (from left to right)
*Remember, if there are two sets of parenthesis, solve the inner most parenthesis first.
Terms to remember:
-Sum means the operation is addition
-Difference means the operation is subtraction
-Product means the operation is multiplication
-Quotient means the operation is division
-Evaluate means you need to solve the problem
-Express means to write the equation, we are speaking in mathmatical language.
Unit 1: Workbook page 10
Unit 1: Workbook page 10
Page 10 in your Math Workbook:
18a) A sixth grade class was purchasing the prizes for the school carnival. They told Shop A that they needed 14 individual prizes and 12 packages containing 36 prizes each. Write an expression to represent the class order.
Think: They need 14 individual PLUS 12 times 36 because there are 36 items in the twelve packages.
14 + 12 x 36 = (remember order of operations!)
18b) This is the same problem, but with 12 Individual packages and 14 times the 36
18c) Find the difference (remember difference means subtraction!)
Unit 3: Decimals--practice questions helps
Unit 3: Decimals--practice questions helps
First, let's figure out how many pears he has (80-12). He sells that amount of pears at 4 for $5, so we divide the answer of 80-12 by 4, then multiply by 5. Subtract that from the original $80 he spent.
Think Susma has 35 more to start, and Lily gave her 13....but that means that Susma had 13 also....so
--13 +35 +13 is a unit. She has three.
Draw your model. Jerry is 3 units, and Ian is 1. Jerry loses 9.50 and Ian gets 4.50 and then they have an equal amount. Think 2 unites = 9.50 +4.50
RSSSSS=$29.90 6 units = 29.90-19.10 *There are 6 units because we have to account for the racket too which is not just $19.10, but $19.10 MORE. FInd one unit. Add that one unit to 19.10 for the racket price.
Number of days Gill took to save $5.40 = 540 divided by 30
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