Enter Title

Powers of 10/Patterns

100

43 x 10²

4,300

200

65 x 10⁰

65

300

56 x 1000

56,000

400

53 x 10¹

530

500

Does 10³ make each statement true?

9 x _____ = 900

45 x _____ = 45,000

165 x ______ = 16,500

80 x ______ = 80,000

no, yes, no, yes

Multiplication

100

68 x 93

6,324

200

109 x 84

9,156

300

145 x 92 

13,340

400

809 x 77

62,293

500

652 x 74

48,248

Problem Solving

100

A musical is playing at a theater that has 893 seats.  What is the best estimate of the total number of tickets available for 45 seats? 

a.  900 x 30                 b.  800 x 50

c.  900 x 50                 d.  800 x 40

C

200

A furniture manufacturer shipped 38 cartons to a store.  Each carton weighed 329 pounds.  What was the total weight of the cartons?

12.502 pounds

300

The Eagle Rock School District ordered 198 cartons of math books.  The books were shipped in cartons that each held 38 books.  Estimate the total number of math books in the shipment.  WRITE AN EQUATION to model your work.  THEN SOLVE THE ESTIMATE.  

200 x 40 = x 

400

Serena flies 893 miles round trip to visit her parents.  What is the total distance, d, in miles, that she would fly for 24 visits to her parents' house?  WRITE AND SOLVE AN EQUATION.  

893 x 24 = d

d = 21,432 miles

500

On a family vacation, Mike took 1,276 digital photos.  His twin sister, Amie, took 18 times as many photos as Mike.  Write and solve an equation to find p, the number of photos that Amie took.  

1,276 x 18 = p

p = 22,968 photos

Logical Reasoning/Problem Solving

100

Mrs. Trevor has a budget of $28,000. Uniforms for the marching band cost $412 each, and he needs 75 uniforms.  He says, "Since 70 x 400 = 28,000, I can stay within the budget."  Do you agree? EXPLAIN

No, because he underestimated how much he would need and won't have enough money to pay for all the uniforms.  

200

Trevor has 994 e-books on his e-reader.  Eli has 23 times as many e-books as Trevor.  How many e-books does Eli have?  

22,862 e-books

300

Nicole buys envelopes for her office in boxes of 185.  If she buys 28 boxes, how many envelopes will she have in all?  

5,180 envelopes

400

Comic Books are sold for $18 each. They sold 56 on Saturday, 89 on Sunday, and 157 on Monday.  Write and solve an equation to find the dollar amount of sales on Saturday.  

56 x 18 = c

c = 1,008 comic books

500

Comic Books are sold for $18 each. They sold 56 on Saturday, 89 on Sunday, and 157 on Monday.  Write and solve an equation to find the dollar amount of sales on Monday.

157 x 18 = c

c = 2,826 comic books

Estimation

100

456 x 89

Estimate

500 x 90 = 45,000

200

393 x 65 =

Estimate

400 x 70 = 28,000

300

Estimate

356 x 28 = 

Over or Under estimate

400 x 30 = 12,000

Overestimate

400

52 x 72 = 

Estimate: over- or under-estimate

50 x 70 = 3,500

Underestimate

500

89 x 129 = 

Estimate, Over or Under estimate

90 x 150 = 13,500

Overestimate