Y4 - TERM 2 - WEEK 3- PPT 2 - ADDITION AND SUBTRACTION

Multiple Choice

Which of the following is a reason to use symbols for unknown numbers in math?

• They make problems easier to solve and understand.

• They make equations longer and more confusing.

• They are only used for decoration.

• They replace all numbers in math.

Open Ended

Why do you think it is important to use objects, shapes, or symbols to represent unknown numbers in mathematics?

Multiple Choice

Which of the following is NOT a way to represent an unknown number according to the success criteria?

• Using objects like counters or beads

• Using shapes like squares or circles

• Using symbols like □ or ?

• Using colors to represent numbers

Multiple Choice

Find the value of the unknown represented by the heart in the equation: 7 + ❤️ = 18.

• 9

• 11

• 7

• 4

Open Ended

Explain how you can use objects, shapes, or symbols to find the value of an unknown number in a math problem.

Open Ended

How can the teacher determine if there will be a student without a partner when pairing all students from the classes listed?

Multiple Select

Which pairs of ribbon lengths add up to 12 cm, given that the red ribbon is shorter than the yellow ribbon?

• (4, 8) and (5, 7)

• (6, 6) and (3, 9)

• (2, 10) and (1, 11)

• (7, 5) and (8, 4)

Fill in the Blanks

Nelly pays with a $10 note and receives $4 in change. The price of the bowl is $

Multiple Choice

Which of the following is a reason to use symbols for unknown numbers in mathematics?

• They make equations easier to understand.

• They help represent numbers we do not know yet.

• They are only used for decoration.

• They replace all numbers in math problems.

Open Ended

How can using objects, shapes, and symbols help you solve problems with unknown numbers?