There are several types of flowers in a field.
5 flowers grow on one bush and there are are 13 such bushes.
Another area has 9 plants, each of which has 2 flowers.
The flower pickers took 30 flowers from the bushes and 10 from the plants.
How many flowers are left in the field?
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There are several types of flowers in a field.
5 flowers grow on one bush and there are are 13 such bushes.
Another area has 9 plants, each of which has 2 flowers.
The flower pickers took 30 flowers from the bushes and 10 from the plants.
How many flowers are left in the field?
We will convert the question into an exercise with which we are familiar:
First, we will solve everything that is in the parentheses, starting with the multiplication and division from left to right:
Then the addition and subtraction operations that are in the parentheses:
Finally, we perform the operations outside of the parentheses:
43
\( 0:7+1= \)
Each type of flower has different quantities and different amounts picked. Grouping keeps the calculations organized: bushes (13×5-30) and plants (9×2-10), then add the results together.
You could calculate total flowers (13×5 + 9×2 = 83) then subtract total picked (30+10 = 40) to get 43. Both methods work, but grouping helps avoid mixing up which flowers came from where.
That works too! Just be careful with the order of operations. Multiplication comes first (65 and 18), then you can subtract from left to right. The grouped method is often clearer.
Look for rate × quantity relationships: 5 flowers per bush × 13 bushes and 2 flowers per plant × 9 plants. The word 'each' or 'per' signals multiplication.
Double-check your arithmetic step by step: 5×13=65, 9×2=18, 65-30=35, 18-10=8, 35+8=43. Most errors happen in basic multiplication or subtraction, so verify each calculation.
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