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Stage 7

Objectives
  • Use place value understanding to add and subtract three-digit numbers
  • Comprehend, reason and solve word problems using addition and subtraction skills
  • Hone addition and subtraction proficiency by solving problems requiring precision and repeated reasoning
  • Develop critical thinking skills around addition and subtraction concepts by solving problems requiring abstraction, reasoning and perseverance
Unit 1: Adding three-digit numbers

Students learn to add three-digit numbers.

Unit Review
  1. Add two three-digit numbers that are multiples of ten.
  2. Addition of three-digit and two-digit numbers
  3. Addition of two three-digit numbers
  4. Addition of three three-digit numbers
Unit 2: Addition - word problems

Students learn to comprehend simple word problems and apply addition skills to solve them.

Unit Review
  1. Addition word problems with numbers up to three digits
  2. Addition expression from description
  3. Addition word problems - three numbers up to three digits each
Unit 3: Addition - critical thinking

Students learn to solve problems using addition skills.

Unit Review
  1. Match answer with addition expression
  2. Compare two addition expressions
  3. Identify addition rule
  4. Addition of 3-digit numbers - find the missing number
  5. Addition of 3-digit numbers - find the missing number in an inequality
  6. Addition of 3-digit numbers - find the missing digit
  7. Select numbers to make a sum
Unit 4: Subtraction of three-digit numbers

Students learn to subtract three-digit numbers.

Unit Review
  1. Subtract three-digit numbers that are multiples of ten.
  2. Subtraction of a single-digit number from up to a three-digit number
  3. Subtraction of a two-digit number from a three-digit number
  4. Subtraction of three-digit numbers without carry over
  5. Subtraction of three-digit numbers
Unit 5: Subtraction - word problems

Students learn to comprehend simple word problems and apply subtraction skills to solve them.

Unit Review
  1. Solve using subtraction - word problems
Unit 6: Subtraction - critical thinking

Students learn to solve problems using subtraction skills.

Unit Review
  1. Match answer with subtraction expression (3-digit numbers)
  2. Compare two subtraction expressions (3-digit numbers)
  3. Identify subtraction rule
  4. Subtraction - find the missing number (3-digit numbers)
  5. Subtraction - find the missing number in an inequality (3-digit numbers)
  6. Subtraction - find the missing digit (3-digit numbers)
  7. Select numbers to make a difference
Unit 7: Addition and subtraction of up to three-digit numbers

Students practice addition and subtraction of up to three-digit numbers.

Unit Review
  1. Add and subtract three-digit numbers
  2. Solve using addition and subtraction - word problems
  3. Addition and subtraction expressions - word problems
  4. Match answer with expression (3-digit numbers)
Unit 8: Addition and subtraction - problem solving

Solve simple problems using addition and subtraction skills for up to three digits.

Unit Review
  1. Addition and subtraction - compare two expressions (3-digit numbers)
  2. Identify addition or subtraction rule (3-digit numbers)
  3. Find the missing number (3-digit numbers)
  4. Find the missing digit (3-digit numbers)
  5. Find the missing operation sign (3-digit numbers)