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 2: Addition - word problems

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

##### Unit 3: Addition - critical thinking

Students learn to solve problems using addition skills.

##### Unit 4: Subtraction of large numbers of up to five digits

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

##### Unit 5: Subtraction - word problems

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

##### Unit 6: Subtraction - critical thinking

Students learn to solve problems using subtraction skills.

##### Unit 7: Mixed addition and subtraction of up to five-digit numbers

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

##### Unit 8: Find the missing number, digit or operation

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