Y4 - TERM 3 - WEEK 3 - PPT 4- DDITION AND SUBTRACTION UNKNOWN QU

Multiple Choice

Which of the following is an example of using a symbol to represent an unknown number in an equation?

• 5 + □ = 12

• 5 + 7 = 12

• 5 × 2 = 10

• 12 − 5 = 7

Open Ended

Why is it important to use objects, shapes, or symbols when working with unknown numbers in mathematics?

Multiple Select

Which of the following are correct values for the unknowns in the equations shown?

• 9 + 47 = 56

• 10 + 81 = 91

• 85 − 13 = 72

• 12 − 36 = 24

Fill in the Blanks

What is the value of the unknown in the equation: 85 −

= 72?

Open Ended

If the total mass of a bag of rice and a bag of flour is 14 kg, and the bag of rice is heavier, what could be the possible masses of each bag?

Multiple Choice

Do you understand today’s outcome?

• Yes

• Bit confused

• I don’t understand