Math is Magic!!!! Everyone pick a number – any number you want!

Slides:



Advertisements
Similar presentations
Evaluate expressions with grouping symbols
Advertisements

MATH MAGIC Making Math Magic NUMBER TRICK #1 Think of a number. Add 3. Multiply by 2. Add 8. Divide by 2. Subtract your original start number. What is.
Math Magic.
Solve an equation with variables on both sides
Choose the right picture
INTEGERS: adding, subtracting, multiplying, and dividing
 To add numbers in scientific notation: 1) Add the constants 2) Keep the exponent the same  Example: (2.1 x 10 5 ) + (3.2 x 10 5 ) = ( ) x 10.
Instructional Processes Pt. 1 Transition: Class, we will now begin to focus on Math. If we can stay on task and understand the lesson, there will be “Math.
Multiplying and Dividing Decimals by 10, 100, and 1,000
Integers All whole numbers and their opposites including the number 0.
Translating into Algebraic expressions
Evaluating a Variable Expression To evaluate a variable expression:
Divide. Evaluate power – 3 = – 3 EXAMPLE – 3 = 3 2 – – 3 = 6 – 3 Multiply. Evaluate expressions Multiply and divide from.
PROPERTIES OF EXPONENTS

8 th Grade Math Chapter 2 Review. Chapter 2 Review 1)Use >, < or = to compare a) -7 < 7 b) -3 < -1 □ □
Powerpoint in the Primary Maths Classroom … more slides How To …
Jeopardy Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy Add fractions Subtract Fractions Multiply Fractions Divide.
Jeopardy Solving Equations Add and Subtract Multiply and Divide Multi-Step Variables on each side Grouping Symbols $100 $200 $300 $400 $500 $100 $200.
Dr. Fowler CCM Solving Systems of Equations By Substitution – Harder.
One step equations Add Subtract Multiply Divide  When we solve an equation, our goal is to isolate our variable by using our inverse operations.  What.
Think of a number Multiply it by 2 Add 8 Divide by 2 Subtract the number you started with What is your answer? Mind reading.
5 Minute Check Complete on the back of your homework x x x x 975.
ORDER OF OPERATIONS. What is the correct method for solving numerical problems?
I’m Thinking of a Number
Addition Multiplication Subtraction Division. 1.If the signs are the same, add the numbers and keep the same sign = = If the.
Math in the Workplace Negative numbers.
Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to construct.
Notes 2.1 Order of Operations PEMDAS If an expression has only numbers and symbols, it is a numerical expression. If it has a variable it is a variable.
Solving 2 step equations. Two step equations have addition or subtraction and multiply or divide 3x + 1 = 10 3x + 1 = 10 4y + 2 = 10 4y + 2 = 10 2b +
What is 10-5? Correct! Click on the picture below to answer another question!
Algebra with Whole Numbers Algebraic Notation. Simplify.
Choose the right picture Choose the right word. 5.
1-2 Order of Operations Objective: Use the order of operations to evaluate expressions.
ADDING AND SUBTRACTING MULTIPLYING AND DIVIDING REAL NUMBERS.
ORDER OF OPERATIONS. 1.Perform any operations with grouping symbols. 2.Simplify powers. 3.Multiply and divide in order from left to right. 4.Add and subtract.
Simplify MultiplyDivide Add & Subtract Proportion.
Calculator Tricks 7 By Brian Carruthers (Please see notes on slide 1)
Fractions V Mixed Numbers & Improper Factions. Mixed Number A mixed number has a part that is a whole number and a part that is a fraction. A mixed number.
Jeopardy Solving Equations
© T Madas.
5-Step Problem Solving Strategy
Multiply or divide as usual.
Solve for variable 3x = 6 7x = -21
Knowing your math operation terms
How can I express this situation efficiently?
Licensing information
Order of Operations Operations are symbols in math.
Numeracy “Maths for Life!”.
Problem-Solving Steps Solve Problem-Solving Steps Solve
Solve an equation by combining like terms
Constructing Equations
FUNNY MATHS ..CAN MATHS BE FUNNY?.
Terms used in Multiplication
To get y, multiply x by 3 then add 2 To get y, multiply x by negative ½ then add 2 To get y, multiply x by 2 then subtract 3 To get y, multiply x.
Warm-up September 14, 2016 Change to a decimal: 644% 23%
Divide the number in C by 10.
Warm-up September 15, 2016 Change to a fraction and simplify: 75% 137%
Multiplying and Dividing in Scientific Notation
10.7 Add, Subtract, Multiply, or Divide in Sc. Notation
Short Division.
Percents and Decimals Objective:
Can you put the symbols in?
V Easy Brain Trainer START x 8 halve it x 6 ANSWER 240.
Algebra with Whole Numbers
Magic Math.
Review of basic operations and vocabulary
EXAMPLE 4 Solve proportions Solve the proportion. ALGEBRA a x 16
It is a brief way to write very large or very small numbers
Number Machine.
Presentation transcript:

Math is Magic!!!! Everyone pick a number – any number you want! Multiply your number by 2 Now add 10 to your answer Divide your total by 2 Now, subtract your original number from your answer Betcha your answer is 5! 

Another trick! Choose a Number Add 5 Multiply your answer by 2 Subtract 4 Divide your answer by 2 Subtract the number you started with The answer is 3

Put it in pictures Choose a number Add five Multiply your answer by 2 Subtract 4 Divide your answer by 2 Subtract the original number

Done with symbols Choose a number Add five Multiply your answer by 2 Subtract 4 Divide your answer by 2 Subtract the original number

One more! Choose a number Double it Add your number Divide by 3 Add 4 Subtract your number Answer