Free Grade 3 Change in Context Techniques Lesson Plans
Free Grade 3 lesson plans for Change in Context Techniques: 12 real questions with a full answer key and worked solutions. Money uses two decimal places. Add up the cost, then subtract from the amount paid to find the change.
Free
Foundation
35 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify change in context techniques
Identify change in context techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain change in context techniques
Explain change in context techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate change in context techniques
Calculate change in context techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare change in context techniques
Compare change in context techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How Change in Context Techniques works
Money uses two decimal places. Add up the cost, then subtract from the amount paid to find the change.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.You buy items costing $4.87, $6.09, $3.90 and pay with $15.00. How much change do you get?[1]
- 2.You buy items costing $6.74, $5.28 and pay with $15.00. How much change do you get?[1]
- 3.You buy items costing $1.14, $5.88 and pay with $10.00. How much change do you get?[1]
- 4.You buy items costing $7.27, $2.83 and pay with $15.00. How much change do you get?[1]
- 5.You buy items costing $10.91, $3.59 and pay with $15.00. How much change do you get?[2]
- 6.You buy items costing $0.96, $9.31, $7.30, $5.32 and pay with $25.00. How much change do you get?[2]
- 7.You buy items costing $5.41, $9.92, $12.96, $5.98 and pay with $35.00. How much change do you get?[2]
- 8.You buy items costing $13.10, $13.70 and pay with $30.00. How much change do you get?[2]
- 9.You buy items costing $17.81, $11.04, $14.90 and pay with $55.00. How much change do you get?[3]
- 10.You buy items costing $8.40, $8.10, $17.44 and pay with $45.00. How much change do you get?[3]
- 11.You buy items costing $3.25, $17.70, $5.18, $9.68, $9.98 and pay with $60.00. How much change do you get?[3]
- 12.You buy items costing $18.42, $8.26 and pay with $40.00. How much change do you get?[3]
Show answers and working
1. $0.14
Total: $4.87 + $6.09 + $3.90 = $14.86. Change: $15.00 − $14.86 = $0.14.
2. $2.98
Total: $6.74 + $5.28 = $12.02. Change: $15.00 − $12.02 = $2.98.
3. $2.98
Total: $1.14 + $5.88 = $7.02. Change: $10.00 − $7.02 = $2.98.
4. $4.90
Total: $7.27 + $2.83 = $10.10. Change: $15.00 − $10.10 = $4.90.
5. $0.50
Total: $10.91 + $3.59 = $14.50. Change: $15.00 − $14.50 = $0.50.
6. $2.11
Total: $0.96 + $9.31 + $7.30 + $5.32 = $22.89. Change: $25.00 − $22.89 = $2.11.
7. $0.73
Total: $5.41 + $9.92 + $12.96 + $5.98 = $34.27. Change: $35.00 − $34.27 = $0.73.
8. $3.20
Total: $13.10 + $13.70 = $26.80. Change: $30.00 − $26.80 = $3.20.
9. $11.25
Total: $17.81 + $11.04 + $14.90 = $43.75. Change: $55.00 − $43.75 = $11.25.
10. $11.06
Total: $8.40 + $8.10 + $17.44 = $33.94. Change: $45.00 − $33.94 = $11.06.
11. $14.21
Total: $3.25 + $17.70 + $5.18 + $9.68 + $9.98 = $45.79. Change: $60.00 − $45.79 = $14.21.
12. $13.32
Total: $18.42 + $8.26 = $26.68. Change: $40.00 − $26.68 = $13.32.
Worked examples
You buy items costing $1.82, $2.41 and pay with $5.00. How much change do you get?
- Total: $1.82 + $2.41 = $4.23.
- Change: $5.00 − $4.23 = $0.77.
- Answer: $0.77
You buy items costing $1.91, $5.09, $8.64 and pay with $20.00. How much change do you get?
- Total: $1.91 + $5.09 + $8.64 = $15.64.
- Change: $20.00 − $15.64 = $4.36.
- Answer: $4.36
You buy items costing $11.52, $7.41 and pay with $30.00. How much change do you get?
- Total: $11.52 + $7.41 = $18.93.
- Change: $30.00 − $18.93 = $11.07.
- Answer: $11.07
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Writes $3.5 instead of $3.50.
Correction: Money always has two digits after the point.
Forgets to carry cents into dollars.
Correction: 100 cents make one dollar.
Teacher tips
- · Run a class shop with real price tags.
Parent tips
- · Let your child pay and check the change.
Real-life applications
- · Shopping, budgeting pocket money.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
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Frequently asked
- Is this Grade 3 Change in Context Techniques lesson plan really free?
- Yes. Every lesson plans on FreeMathWorksheet is free to use, print and share — no account, no paywall and no watermark.
- What should a learner already know before this?
- Start with Change in Context Essentials, Working with Change. Each one has its own free lesson, worksheet and quiz.
- How is the lesson plan sequenced?
- Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
- What comes next after Change in Context Techniques?
- Move on to Change in Context Word Problems, Change in Context Common Errors, Introducing Change, Working with Change, which build directly on this idea.
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