1. Mr. Andrew bought 4 boxes of crayons at the store to share with his students. Each box contained a total of 64 crayons. What is the total number of crayons Mr. Andrew bought at the store? Estimate first.

Solve the problem and explain your answer using pictures, diagrams, equations, and/or words.

Is it Division or multiplication?

64x4 is 256

Step-by-step explanation:

It’s multiplication I think since we want to know the total number of crayons in 4 boxes with 64 crayons

m∠a is 90°

m∠b is 40°

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours