Numbers all but

Question

45 butterflies are drinking nectar from flowers. All but 18 butterflies tummy were full and flew away. How many butterflies flew away?

Answer 1

Let's start by looking at the information given in the word problem. There are 45 butterflies drinking nectar, and then all but 18 flew away.

First step: we need to subtract the number of butterflies that remain from the total number of butterflies. Therefore, the equation is 45 - 18 = B. Solving this, we get 45 - 18 = 27. So, 27 butterflies flew away. We can also decompose the numbers using a place value strategy. This means breaking down the numbers as follows:

For the tens value: 40 - 10 = 30

For the ones value: 8 - 5 = 3

Then, combine the results: 30 - 3 = 27.

So, 27 butterflies flew away.

Answer 2

To find out how many butterflies flew away, we need to subtract the number of butterflies whose tummies were full from the total number of butterflies.

Total number of butterflies = 45

Butterflies with full tummies = 45 - 18 = 27

So, 27 butterflies flew away.

Answer 3

45 -18 = 27 flew away