Name the Part
What is the base of 23?
2
Solve 21 x 101
210
Write in exponential form: 10 x 10 x 10
103
Estimate 27 to the nearest tens place.
30
On a school trip, 62 students went to an aquarium. Each ticket costs $26. About how much did all students spend on tickets? Estimate both numbers and solve.
60 x 30 = $1,800
What is the exponent of 54?
4
Solve 71 x 104
710,000
Solve 53
125
Estimate 683 to the nearest tens place.
680
The town library has 478 shelves. Each shelf holds 38 boks. About how many books does the library have? Estimate each number to the nearest and biggest place value and solve.
500 x 40 = 20,000 books
What does the exponent tell you to do when solving an exponent like 23?
It tells you how often or how many times to multiply the base number.
50,000
Solve 122
144
Estimate 39 x 47 to the nearest tens place and solve.
40 x 50 = 2,000
A vendor at a fair is selling her paintings for $23 each. Over the course of the fair, 339 people purchase her paintings. About how much did the vendor earn during the fair? Estimate to the nearest and biggest place value and solve.
300 x 20 = $6,000
What is the expanded form of 54?
5 x 5 x 5 x 5
Solve 60 x 106
60,000,000
Solve 45
1,024
Estimate 123 x 510 to the nearest hundreds place and solve.
100 x 500 = 50,000
The fifth graders sold 405 baked goods at the bake sale. Each pastry/dessert was sold for $12. About how much did the fifth graders make? Estimate each number to the nearest and biggest place value and solve.
400 x 10 = $4,000
Solve 53 x 109
53,000,000,000
Solve 83
512
Estimate 1,567 x 488 to the nearest hundreds place and solve.
1,600 x 500 = 800,000
Han estimates that the product of 492 and 32 will be 1,200. Is Han correct: Yes or No?
No, 500 x 30 = 15,000