Unit 2 Review Created by Educational Technology Network. www.edtechnetwork.com 2009

Geometry 10 20 30 40 50 Area & Perimeter Time Conversions “What’s My Rule?”, Arrays, and Place Value Multiplication Equations as Comparisons Geometry 10 20 30 40 50

Question 1 - 10 How do you find the area of a rectangle?

Answer 1 – 10 Multiply the length times the width. l*w = area

Question 1 - 20 How do you find the perimeter?

Answer 1 – 20 2l+2w=perimeter

Question 1 - 30 Find the area of the rectangle below. 2 cm 4 cm

Answer 1 – 30 8 square centimeters

Question 1 - 40 Find the perimeter of the rectangle below. 3 cm 6 cm

Answer 1 – 40 18 centimeters

Question 1 - 50 What is the length of the rectangle? What is the width? 3 cm 5 cm

Answer 1 – 50 Length: 5 cm Width: 3 cm

Question 2 - 10 How many hours are in 240 minutes?

Answer 2 – 10 4 hours

Question 2 - 20 How many minutes in an hour?

Answer 2 – 20 60 minutes

Question 2 - 30 How many seconds in a minute?

Answer 2 – 30 60 seconds

Question 2 - 40 How many hours in 540 minutes?

Answer 2 – 40 9 hours

Question 2 - 50 Explain at least two different ways you can find out how many minutes are in 6 hours.

Answer 2 – 50 1) I know there are 60 minutes in 1 hour, so if there are 6 hours, I need to multiply 60 by 6. That’s 360. 2) I can find 6 hours on my conversion chart, and see that it matches up to 360 minutes.

Question 3 - 10 Draw all the arrays for the number 12.

Answer 3 – 10

Question 3 - 20 Round 579,274 to the nearest 10,000

Answer 3 – 20 580,000

Question 3 - 30 In the number 734,120 the digit 7 is in the ________ place.

Answer 3 – 30 Hundred-thousands

Question 3 - 40 456,808 How many times as large is the 8 in the hundreds place as the 8 in the ones place?

Answer 3 – 40 100 times as large

Question 3 - 50 Solve this “What’s My Rule?” table:

Answer 3 – 50 20, 16, 23, 31

Question 4 - 10 The product of 8 and 7 is 56

Answer 4 – 10 8*7=56

Question 4 - 20 45 is 3 times as many as 15.

Answer 4 – 20 45=3*15

Question 4 - 30 Bobby has 3 times as many basketball cards as Billy. If Bobby has 12 basketball cards, how many does Billy have? Equation:___________ Solution:____________

Answer 4 – 30 Equation: 3*12=36 Solution: Billy has 36 basketball cards.

Question 4 - 40 In this week’s football game, Steven played 5 times the number of minutes he played in last week’s game. If he played 45 minutes in this week’s game, how many minutes did he play last week? Equation:_________ Solutions:_________

Answer 4 – 40 Equation: 5*?=45 minutes Solution: Steven played 9 minutes in last week’s game.

Question 4 - 50 Lexi read for 10 minutes. Estefany read 4 times as long. How long did Estefany read? Should you multiply or add to find the answer? Explain.

Answer 4 – 50 You should multiply because she read 10 times as many minutes, not 10 more minutes.

Question 5 - 10 Circle any right angles or write none.

Answer 5 – 10

Question 5 - 20 Draw at least one line of symmetry in the shape.

Answer 5 – 20

Question 5 - 30 Name at least two properties of a square.

Answer 5 – 30 4 congruent sides. 2 sets of parallel sides. 4 right angles.

Question 5 - 40 Name at least two properties of a rectangle.

Answer 5 – 40 It has 2 pairs of congruent sides. It has 2 pairs of parallel lines. It has 4 right angles.

Question 5 - 50 Name all of the angles in this shape:

Answer 5 – 50 2 acute angles & 2 obtuse angles