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Kuala Lumpur

BODMAS- Using Brackets

Home > PowerPoint Slides > BODMAS- Using Brackets
Published in: Mathematics
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BODMAS can be a bit confusing. Then throwing in brackets..what do we do? Have a look at this powerpoint for some help.

Narvindar J / Kuala Lumpur

5 years of teaching experience

Qualification: Degree and CICTL

Teaches: Mathematics, Science

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  1. Chapter 2: The Number System 2.3: Using Brackets
  2. LO: We are learning to use brackets to alter the order of operations.
  3. Success Criteria 2. 3. I know how to solve equations with brackets. I know how to write equations with brackets. I know how to use brackets to alter the order of operations.
  4. Starter: Am I right or Wrong? l. 16 ll. 45 111.9/3-2: 9 IV.6-3x2: 6 v. 20
  5. Why do we use brackets? According to BODMAS, when solving an equation, we always solve the brackets first. We use the brackets to show which expression we need to solve first, before solving the rest of the equation. When you change the position of the brackets, you will also change the answer of the equation.
  6. BODMAS ORDERING MATHEMATICAL OPERATIONS NYJIJ'S Boomas (D€ooee Always remember BODMAS when solving equations.
  7. Examples 17? (9+2)) = 17+4-13 = 10?9-22 = 10+2?3 = 67 +4?2 = 36 + 2) = 12?3+10 =
  8. Changing The Place of Brackets Would the answer for both be the same? When we change the place of the brackets, the answers will change. This is because we are changing what we need to solve first.
  9. Writing Expressions with Brackets Sarah wants to pack 72 mangoes equally into 8 boxes. 2 of the boxes are broken. She repacks the mangoes equally into the remaining boxes. How many mangoes are there in each box? 72 + (8-2) = 72 +6 = 12 DO the oporaOon in brackets first. There are 12 mangoes in each box. What would h acpen If dWiü before sub tractirB7 Wu.•ld you get the same answer? What do you think ttw ug of brackets?
  10. Writing Expressions with Brackets 8 classes went for a trip. Each class had 23 students and 2 teachers. 4 more teachers joined the trip later. How many people went for the trip altogether? 4+8 x ( + ) = 4+8 x people went for the trip altogether. Sdve the "odon in tNs order: 2 MultWication and/or "sim from left to r"ht 3 Addtim subtraedm left to righ t
  11. More Examples Solution The price of a shirt is 100 dollars. The store manager gives a discount of 50 dollars. A man and his brother bought 4 shirts and then share the cost with = (50)x 4 2 his brother. Write a numerical expression to represent this situation = 200 + 2 and then find the price paid by each brother. = 100
  12. Jessica bought 4 notebooks for $1.60 each, two boxes of pencils for $1.50 each, and a box of pens for $1.70. Write an expression for Jessica's total expenditure and find how much she paid in all. Solution 6.4+3+1 .7: 11 .1 She spent $11.1
  13. Plenary Place brackets to make each of these calculations 17 - 5 = 140 10 + 20 10 4 - 12 54 12 6 6+3

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