Add and Subtract Integers 2) If the problem is subtraction, change subtraction to adding the opposite (keep-change-change) and then follow the addition rule |7| – |-2| = ? -9 -5 5 9 |-4 – (-3)| = ? -1 1 7 Purple Objectives The student will be able to: 1 State the coordinate of a point on a number line 2 Graph integers on a number line 3 Add and subtract integers
PowerPoint Presentation Addition and Subtraction Mental addition and subtraction Objectives Day 1 Add and subtract 3-digit numbers mentally using place value and number facts
Subtraction - Primary Resources 39 15 81 30 98 54 66 44 75 33 58 21 T U T U T U T U T U T U 85 20 70 50 64 50 51 10 49 30 98 40 T U T U T U T U T U T U 92 70 75 10 64 60 95 30 52 20 83 40 T U T U T U T U T U T U 92 31 95 14 84 23 54 33 76 41 34 12 T U T U T U T U T U T U 28 3 18 6 87 2 77 5 69 7 54 4 T U T U T U T U T U T U 85 0 38 6 79 9 67 5 66 1 58 7 T U T U T U T U T U T U 85 12 Solve these problems 54 22 89 52 99 20 68
PowerPoint Presentation Methods of Subtraction St Margaret’s Academy Mathematics Dept Choose two three digit numbers and subtract the smaller from the larger… 4 3 6
PowerPoint Presentation Reasoning and Problem Solving Year 3- Autumn - Block 2 Addition Subtraction += 800 Each of the missing numbers are multiples of 100 Find all the possible missing numbers
PowerPoint Presentation Mathematics Year 5: (5C2) Add and subtract whole numbers with more than 4 digits, including using formal written methods (columnar addition and subtraction) Mathematics Year 6: (6C8) Solve problems involving addition, subtraction, multiplication and division More Year 5 and Year 6 Addition and Subtraction resources
Solving One-Step Equations - Mrs. Cooneys Classroom Definitions Term: a number, variable or the product or quotient of a number and a variable X 2w c 3 Terms are separated by addition (+) or subtraction (-) signs 3a – 2 5b + 7x – 4z + 52 How many Terms do you see? 5 Definitions Constant: Coefficient: a term that is a number the number value in front of a variable in a term 3x – 6y + 18 = 0 What are your coefficients? What is your
Properties of Addition - mathemons Drill -24 + 8 Answer -16 Drill 9 1 + (-2 5) Answer 6 6 Drill 53 + (-37) Answer 16 Drill -11 4 + (-3 8) Answer -15 2 Subtraction of Integers Rule in Subtraction In subtracting an integer from another integer, add the opposite of the subtrahend to the minuend
PowerPoint Presentation Year 3, Unit 7 Column subtraction Curriculum Prioritisation for Primary Maths A term-by-term framework to support planning and teaching Summer 2021
Solving Equations with Addition and Subtraction Objective The student will be able to: solve equations using addition and subtraction Designed by Skip Tyler, Varina High School 1) Solve r + 16 = -7 Think of this equation as a balance scale Whatever you do to one side has to be done to the other to keep it balanced! 1) Solve r + 16 = -7 To solve, you must get the variable by itself