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N.1 Addition and subtraction up to 5: word problems

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Addition and Subtraction in Word Problems up to 5

Word problems use short stories to describe adding or taking away objects. Students learn to listen for key words and actions that tell whether to combine amounts (addition) or remove amounts (subtraction).

Example Problems:
  • There are 2 apples. You get 3 more. How many apples now? Answer: 5
  • There are 4 balloons. 1 balloon pops. How many balloons are left? Answer: 3
  • You see 1 dog. 2 more dogs join. How many dogs now? Answer: 3
Teacher Tip

Guide students to identify the action firstโ€”โ€œput togetherโ€ or โ€œtake awayโ€โ€”before deciding how to solve the problem.

Using Objects and Pictures to Solve

Drawing pictures or using counters can help students see the problem. They can watch as objects are added or removed, then count the total or what is left.

Hands-On Examples:
  • You have 3 toy cars. You get 2 more. Draw or use counters: Answer is 5.
  • There are 5 flowers. 2 are picked. Remove 2 counters from 5: Answer is 3.
  • There are 4 cookies. You add 1 more. Count all: Answer is 5.
Helpful Strategy

Provide students with real objects or printed pictures to move around while solving the problem. This builds a strong connection between numbers and actions.

Counting Forward and Backward

Counting forward is used for addition, and counting backward is used for subtraction. This skill can be practiced using fingers, a number line, or physical steps.

Counting Examples:
  • Start at 2, count forward 3 steps: 3, 4, 5 โ†’ Answer is 5.
  • Start at 5, count backward 2 steps: 4, 3 โ†’ Answer is 3.
  • 3 plus how many makes 5? Count up from 3: 4, 5 โ†’ Answer is 2.
Instructional Tip

Use a large class number line for students to physically hop forward or backward, reinforcing the idea of moving up or down in numbers.

Finding the Missing Number

The missing number in a problem can be at the start, in the middle, or at the end. Being able to figure it out helps students solve a variety of problem types.

Examples:
  • [] + 2 = 4 โ†’ Missing number is 2.
  • 5 โˆ’ [] = 3 โ†’ Missing number is 2.
  • 1 + 3 = [] โ†’ Missing number is 4.
Math Language

Have students read the equation aloud in their own words to better understand what is being asked.

Checking the Answer

Students should check their answer by placing it back into the problem to see if it works. This builds accuracy and reinforces understanding of number relationships.

Checking Examples:
  • [] + 1 = 3 โ†’ Try 2: 2 + 1 = 3 โœ“
  • 4 โˆ’ [] = 1 โ†’ Try 3: 4 โˆ’ 3 = 1 โœ“
  • 2 + 3 = [] โ†’ Try 5: 2 + 3 = 5 โœ“
Helpful Tip

Model re-reading the problem and checking with the original numbers to confirm the solution.

Connecting Math to Everyday Life

Students can better understand addition and subtraction by relating problems to familiar situations like sharing snacks, playing games, or helping at home.

Real-Life Examples:
  • You have 2 pencils. You find 3 more. 2 + 3 = 5.
  • You have 4 crackers. You eat 1. 4 โˆ’ 1 = 3.
  • You have 3 marbles. A friend gives you 2 more. 3 + 2 = 5.
Engagement Tip

Ask students to create their own word problems from real-life experiences. This makes learning math more meaningful and fun.