Question

Use ‘make a $10$’ strategy and select the correct option to fill the empty boxes.

• A. $1,2$
• B. $2,2$
• C. $2,3$
• D. $1,3$

Answer 1

The correct option is A $1,2$

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

Ask:
$\bullet$ What do we have to do here?
Ans: We have to subtract $3$ from $11$ 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, $1$ needs to be subtracted from $11$ to make it into a ten.
(ii) We break down the smaller number into that number. Here, $3$ is broken down into $1$ and $2.$ Then, $1$ is subtracted from $11$ to make a $10,$ and $2$ is the remaining.
(iii) Finally, $2$ is subtracted from $10,$ i.e., $10–2,$ to get the difference of $8.$
$\bullet$ So, what numbers are used to fill the empty boxes?
Ans: $1$ and $2$

Hence, Option A 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.