Question

There are $8$ birds that can fly very high, and the same number of birds that cannot. Complete the given equation to find the number of birds that cannot fly high, and answer which of the following equations is the same as the given equation.

__ $–8=$ __

• A. $8,8+8=16$
• B. $7,7+8=15$
• C. $3,15+3=18$
• D. $3,11–8=3$

Answer 1

The correct option is A $8,8+8=16$

As the number of birds that can fly very high and those that cannot fly are the same, therefore, on two number frames, if we place $8$ counters first and 8 later, the total counters will be $16$.
Addition equation: $8+8=16$


On two number frames, if we place $16$ counters first and remove $8$ later, the counters left will be $8$.
Subtraction equation: $16–8=8$


Hence, Option B is the correct answer, the number of birds that cannot fly high is $8$ and the addition equation framed is $8+8=16$.