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Stage 12

Objectives
  • Add and subtract numbers up to ten thousasand
  • 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: Addition - up to five-digit numbers

Students learn to add large numbers up to five digits.

Unit Review
  1. Addition of numbers of up to four digits
  2. Addition of numbers of up to five digits
  3. Addition of three or more numbers up to five digits
Unit 2: Addition - word problems

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

Unit Review
  1. Solve using addition
  2. Solve using addition - 3 numbers
  3. Application of approximation in addition
Unit 3: Addition - critical thinking

Students learn to solve problems using addition skills.

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

Students learn to subtract large numbers of up to five digits.

Unit Review
  1. Subtraction of numbers up to four-digit numbers
  2. Subtraction of numbers up to five-digit numbers
Unit 5: Subtraction - word problems

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

Unit Review
  1. Solve using subtraction - numbers in thousands
  2. Application of approximation in substraction
Unit 6: Subtraction - critical thinking

Students learn to solve problems using subtraction skills.

Unit Review
  1. Match subtraction expression
  2. Compare two subtraction expressions
  3. Identify subtraction rule
  4. Subtraction - Find the missing number
  5. Subtraction - Find the missing number in an inequality
  6. Subtraction - find the missing digit
  7. Select numbers to make a difference
Unit 7: Mixed addition and subtraction of up to five-digit numbers

Practice addition and subtraction of up to five-digit numbers.

Unit Review
  1. Understand use of parentheses
  2. Add and subtract numbers of up to five digits
  3. Solve using addition and subtraction
  4. Match arithmetic expressions
  5. Compare two arithmetic expressions
  6. Identify addition or subtraction rule
  7. Find numbers given sum and difference
Unit 8: Find the missing number, digit or operation

Find the missing numbers, digits or operation signs involving addition and subtraction equation and inequalities.

Unit Review
  1. Balance addition and subtraction sentences
  2. Find the missing number in an inequality
  3. Find the missing digit - addition and subtraction sentences
  4. Find the missing operation sign