Question

Use the ‘make a $10$’ strategy and find the difference between $12$ and $6$ to fill the empty box.

• A. $6$
• B. $10$
• C. $2$
• D. $4$

Answer 1

The correct option is A $6$

Say: Let's read the question and observe the image.

Ask:
$\bullet$ What do we have to do here?
Ans: We have to subtract $6$ from $12$ using “make a ten”.
$\bullet$ What are the steps to subtract using the make a ten strategy?
Ans: We need to identify the number that needs to be subtracted from the bigger number to make it into a ten. Here, $2$ needs to be subtracted from $12$ to make it into a ten.
(ii) We break down the smaller number into that number. Here, $6$ is broken down into $2$ and $4$. Then, $2$ is subtracted from $12$ to make a $10,$ and $4$ is the remaining.
(iii) Finally, $4$ is subtracted from $10,$ i.e., $10–4,$ to get the difference of $6.$
$\bullet$ So, what numbers are used to fill the empty boxes?
Ans: $2,4,$ and $6$
$\bullet$ What is the difference between $12$ and $6$ ?
Ans: $6$

Hence, Option C is correct.

WB: Use the whiteboard to write the equation and find the total using the make a ten strategy as shown and explain the steps.