Addition and Subtraction
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Level contents
- * Assessment for the whole of Level 3
- ** Assessment test answers
- *** Assessment test records
- 3:01 Addition and subtraction facts
- Match number sentences to answers in numerals or words. Make number sentences true by counting on. Match questions to position of answers on number line. Join the feet that have matching answers.
- 3:01C Addition facts
- Addition and subtraction practice, 1- and 2-digit numbers.
- 3:02 Mental addition strategies
- Extension page. Addition practice using patterns and Bridging to ten. Addition and subtraction practice using the split strategy.
- 3:02E Addition and subtraction strategies
- Extension page. Practise using patterns, the split strategy or bridging to tens strategies for addition and subtraction
- 3:03 The jump strategy
- Addition and subtraction practice using the jump strategy - number lines.
- 3:04 Addition using Base 10 blocks
- Problem solving and addition of 2 digit numbers using Base 10 blocks.
- 3:04C Addition using Base 10 blocks
- Problem solving with money and addition of 1 and 2 digit numbers, using Base 10 blocks.
- 3:05 Addition algorithm, no trading
- Problem solving and addition of 1- and 2-digit numbers, using Base 10 blocks.
- 3:06 Addition, no trading
- Addition of 2- and 3-digit decimal numbers, in algorithm form.
- 3:06PT Progress test
- Test of Addition and Subtraction
- 3:07 More addition strategies
- Addition and Subtraction using patterns or compensation strategy, or by changing the order of addends.
- 3:08 Subtraction using Base 10 blocks
- Subtraction of 2-digit numbers using Base 10 blocks, problem solving.
- 3:09 Subtraction, no trading
- Subtraction of 2 digit numbers and money, in the algorithm form, problem solving.
- 3:09C The jump strategy
- Addition and subtraction of 2-digit numbers using the jump strategy - number lines
- 3:10 Subtraction, no trading
- Subtraction of 2-digit numbers and money, in the algorithm form. Problem solving, using algorithms and the jump strategy - number lines to check.
- 3:10C Addition and subtraction, no trading
- Addition and subtraction of 1- and 2-digit numbers using the algorithm.
- 3:11 Addition with trading
- Use Base 10 materials to trade ten ones for one ten and complete the addition algorithms and problems.
- 3:12 Addition with trading
- Use Base 10 materials to trade and complete the addition algorithms.
- 3:12C Addition with trading
- Use Base 10 materials to trade and complete the addition algorithms.
- 3:13 Addition with trading
- Use Base 10 materials to trade and complete the addition algorithms and problems. Round off answers to money questions.
- 3:13C Addition with trading
- Use Base 10 materials to trade and complete the addition algorithms
- 3:13PT Progress test
- Test of Addition and Subtraction
- 3:14 Shopping
- Match items to coins needed to buy. Add prices and round. State coins needed. Calculate change by adding on.
- 3:14C Giving change
- Count on to calculate change.
- 3:15 Subtraction with trading
- Subtraction with trading, using Base 10 blocks, problem solving.
- 3:15C Subtraction with trading
- Complete number sentences. Write the numbers represented by the examples of trading shown in Base 10 material. Use concrete material to solve subtraction algorithms.
- 3:16 Subtraction with trading
- Complete subtraction algorithms by trading.
- 3:17 Subtraction with trading
- Complete subtraction algorithms and problems by trading.
- 3:17C Subtraction with trading
- Complete mental subtraction sentences. Practise trading tens for ones. Show trading above as you complete the algorithms. Write some of your own.
- 3:18 Addition with trading
- Complete 2 -digit addition algorithms with trading. Complete problems using trial and error.
- 3:18PT Progress test
- Test of Addition and Subtraction
- 3:19 Subtraction with trading
- Complete 2-digit subtraction algorithms and problems that require trading.
- 3:19E Addition and subtraction with trading
- Extension page. Complete addition and subtraction algorithms and problems that require trading. Estimate differences.
- 3:20 Estimation with addition
- Round and estimate answers before completing. Check reasonableness of completed answers by estimating. Estimate and solve using a calculator.
- 3:21 Estimation with subtraction
- Estimate answers by rounding and solve, checking reasonableness. Solve and estimate to check.
- 3:22 Decimal addition and subtraction
- Addition and subtraction of decimals/ money. Practise keeping points under points. Find change.
- 3:23 Addition and subtraction
- Timeline of ages, finding difference, adding ages. Estimating.
- 3:23E Addition and subtraction
- Extension page. Use given numbers only once to make algorithms with the smallest or largest possible total. Fill in blanks to make algorithms correct.
- 3:23PT Progress test
- Test of Addition and Subtraction