VOCABULARY
When multiplying multi-digit numbers, you can decompose then factors and find ____________. Then, you add the ________________________ to get the product.
What are Partial Products?
An expression or value that is equivalent to 10 to the power of 4.
What is 10 x 10 x 10 x 10 or 10,000?
The rock museum has 324 display drawers. Each drawer holds 23 rock samples. About how many rock samples does the museum have? Include an equation in your answer.
What is about 300 x 20 = 6,000 rock samples?
328 X 14 = _________
What is 4,592?
A(n) _________________ is written in exponential form using 10 as the base and the number of times 10 is multiplied by itself as the power, or exponent.
What is a Power of 10?
The __________ of a number written in exponential form tells you how many times the base is multiplied by itself.
What is an exponent?
A number multiplied by a power of 10 six times.
What is 1,000,000?
The best estimate for 367 x 29. Include an equation in your answer.
What is 400 x 30 = 12,000?
429 x 31 = ___________
What is 13,299?
A set of steps used to calculate a problem.
What is an algorithm?
The _________________ of a number includes a base raised to a power call the exponent.
What is the exponential form?
50 x 10 x 10 x 10
What is 50,000?
The track team runs a combined average of 126 miles per day. About how many miles might the team run in 5 weeks? Give me an equation in your answer.
What is about 100 x 7 days x 5 weeks = 3,500 miles?
OR
What is about 120 x 7 days x 5 weeks = 4,200 miles?
53 x 37 = _______
What is 1,961?
10 to the power of 5 as a product of 10s.
What is 10 x 10 x 10 x 10 x 10 = 100,000?
To estimate a solution, you can do this to the values before performing operations.
What is round?
5 x 10 to the power of 3
What is 5,000?
An estimate using compatible numbers for 326 x 14 = x.
What is 300 x 15 = 4,500?
The product of 541 x 62.
What is 33,542?
242 x 6 = x
What is 1,452?
This is an approximate solution to a problem.
What is an estimate?
16 x 10 to the power of 5
What is 1,600,000?
An estimate for the area of a rectangle that is 17 meters x 32 meters.
What is 20 x 30 = 600 meters?
327 x 29 =
What is 9,483?
5 or above, you add one.
4 or below, you leave it alone.
What is the Rounding Rule?