Question

$14$ birds are sitting on a tree. $8$ fly away. What is the subtraction equation? Which of the following options shows all the addition and subtraction equations?

• A. $8–14=6,6–14=8,8+6=14,6+8=14$
• B. $14–8=6,14–6=8,6+8=14,8+6=14$
• C. $2+6=8,6+2=8,8–2=6,8–6=2$
• D. $14+8=22,8+14=22,22–14=8,22–8=14$

Answer 1

The correct option is B $14–8=6,14–6=8,6+8=14,8+6=14$

Say: Let's read the question.

Ask:
$\bullet$ What do we have to do here?
Ans: We need to identify the related addition and subtraction equations for the number of birds left on the tree.
$\bullet$ How many birds are sitting on the tree?
Ans: $14$
$\bullet$ How many birds fly away?
Ans: $8$
$\bullet$ How do we find the number of birds that remain?
Ans: By subtracting the number of birds that fly away, i.e., $8$ from the number of birds that were sitting on the tree, i.e., $14.$
What equation will be framed?
Ans: $14–8=6$
$\bullet$ If we knew the number of birds that were remaining on the tree, i.e.,$6$ and the number of birds that were sitting on the tree at first, i.e., $14,$ what equation would we frame to find the number of birds that flew away?
Ans: $14–6=8$
$\bullet$ Using the same three numbers, i.e., $6,8,$ and $14,$ what addition equation can be framed?
Ans: $6+8=14$ and $8+6=14$

Hence, Option A is correct.
WB: If required, use the whiteboard to represent the bigger and smaller number as shown, and write the related addition and subtraction equations.