Question

understand the associative property of multiplication
1 model with mathematics ali makes 4 candles in one hour. she makes candles for 2 hours each day. ali has made candles for 5 days. how many candles has ali made in 5 days?

• write an equation for the problem.
• write another way to group the factors.
• how many candles has ali made?

3 2×(9×3)
5 (7×2)×3 = 7×

Explanation:

Step1: Identify the factors

The number of candles made per hour is 4, the number of hours per day is 2, and the number of days is 5. The equation for the total number of candles made is $(4\times2)\times5$.

Step2: Apply the associative property of multiplication

Another way to group the factors is $4\times(2\times5)$.

Step3: Calculate the total number of candles

First, calculate $2\times5 = 10$. Then, $4\times10=40$.

Answer:

• Equation: $(4\times2)\times5$
• Another way to group factors: $4\times(2\times5)$
• Number of candles: 40