Solving Addition and Subtraction Word Problems

The video tutorial introduces the ONSA approach for solving word problems involving addition and subtraction. It outlines the steps: identifying the given information, determining what is asked, selecting the operations, writing the number sentence, solving, and finding the answer. Two example problems are solved using this approach: calculating remaining fruits and determining change after a purchase.

What is the first step in the ONSA approach?

• Write the number sentence

• Read and understand the problem

• Solve for the answer

• Identify the operation

Tags

CCSS.1.OA.A.1

What does 'G' stand for in the ONSA approach?

• Given

• Guess

• Generate

• Guide

What does 'A' represent in the ONSA approach?

• Analyze

• Approach

• Ask

• Answer

Tags

CCSS.RI.6.10

CCSS.RL.9-10.10

CCSS.RL.6.10

CCSS.RI. 9-10.10

CCSS.RI.7.10

What does 'N' stand for in the ONSA approach?

• Name

• Note

• Number

• Number sentence

Tags

CCSS.6.EE.A.1

What operation is indicated by 'left' in the context of the fruit problem?

• Subtraction

• Addition

• Division

• Multiplication

Tags

CCSS.2.OA.A.1

How many pieces of fruit did Annie have left after selling some?

• 301 pieces

• 661 pieces

• 655 pieces

• 360 pieces

Tags

CCSS.2.OA.A.1

In the shopping problem, what operations are used?

• Addition and Division

• Subtraction and Multiplication

• Addition and Subtraction

• Multiplication and Division

Tags

CCSS.3.OA.D.8

Why do we group 65 and 48 in parentheses in the shopping problem?

• To subtract them first

• To multiply them

• To divide them

• To add them first

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

What is the total cost of the banana and sweet potato?

• 113 pesos

• 200 pesos

• 65 pesos

• 48 pesos

Tags

CCSS.3.OA.D.8

How much change did the mother receive from the vendor?

• 87 pesos

• 113 pesos

• 200 pesos

• 65 pesos

Tags

CCSS.7.NS.A.1C