2nd Grade Math Study Guide 2011-2012 Part 2

______________________________ Telling Time ___ ___ : ___ ___ Write the steps for telling time. ______________________________ ______________________________ Why must you include “mark the danger zone” in the steps? _________________________________________________ ********************************************************** Telling Time in My World Page 15

1. What time is shown on the clock? a) 1:55 b) 12:55 c) 11:05 d) 1:11 2. Val was at the doctor's office at the time shown on the clock. What time was Val at the doctor's office? a) 8:15 b) 8:10 c) 2:35 d) 2:40 Page 16

Times Before, Between, and After Show a time earlier than 8:50. Earlier means _____________. 7:00 8:00 9:00 Show a time later than 3:30. Later means _____________. 2:00 3:00 4:00 Show a time between 4:15 and 5:45. Between 4:15 and 5:45 means ________________________ _________________________________________________ 4:00 5:00 6:00 ********************************************************** Telling Times Before, Between and After in My World Page 17

What time is later than 4:10? a) 3:45 p.m. b) 3:30 p.m. c) 4:25 p.m. 1. School is out at 4:10 p.m. What time is later than 4:10? a) 3:45 p.m. b) 3:30 p.m. c) 4:25 p.m. d) 4:00 p.m. 2. Which time is between 6:45 and 7:20? a) 7:05 b) 7:30 c) 6:35 d) 7:50 Page 18

********************************************************** The 4-Step Process Word Box strategy how details main idea Label each part of the windowpane. 6 - 2 4 subtracted 2 from 6 6 J. shells ? 2 shells left Connect each oval above with its "home" in the windowpane. ********************************************************** Problem Solving in My World Page 19

He got 5 new fish from his mother. His father gave him 2 more fish. 1. Ronnie had 7 fish. He got 5 new fish from his mother. His father gave him 2 more fish. How many fish does Ronnie have? 2. Rose found 9 shells at the beach. Her brother took 2 of the shells, and her sister took 4. How many shells did Rose keep? Page 20

Multi-step Problem Solving Kay has 8 cookies. Kay's cookies 8 Kay's mother gave her _____ more cookies. Adjust the model to show this. Kay and her sister ate _____ cookies. Adjust the model to show this. How many cookies are left? Put the ? on your model. ********************************************************** Multi-Step Problems in My World Page 21

1. Juan saw 12 ducks on the pond. Three ducks flew away. Six more ducks came to the pond. How many ducks are on the pond now? 2. Thirteen coins are on the table. Ray takes 5 coins, and Danny takes 4. What is one way to show how many coins remain on the table? a) 13 - 5 + 4 b) 13 - 9 c) 13 + 5 + 4 d) 13 + 9 Page 22

Compare 9 ξ ξ ξ ξ ξ ξ ξ ξ 2 Julie's books ? Marie's books 1) What does the ξ do? ______________________________ __________________________________________________ 2) What does mean? ______________________________ __________________________________________________ ********************************************************** "Comparing" in My World Page 23

1. Mark's line is 19 inches long. Linda's line is 5 inches long, and Sue's is 7 inches long. Which way shows how much longer Sue's line is than Linda's? a) 19 + 5 + 7 = b) 7 + 5 = c) 19 - 7 = d) 5 + = 7 2. Nathan has 15 balls. Eleven are green, three are blue, and one is red. Which tells one way to find out how many fewer green balls than blue balls Nathan has? a) Subtract 11 from 15. b) Add 11, 3 and 1. c) Subtract 3 from 11. d) Add 11 and 3. Page 24

********************************************************** Missing Part Circle the number sentences that show how to find the ?. 11 + 3 + 5 = 11 11 - 3 - 5 = dogs sleep eat play 11 + 3 - 5 = 3 5 ? 3 + 5 + = 11 Write two number sentences that could be used to find the value of the ? in this model. 14 cars 7 3 ? white green red ********************************************************** "Missing Part" in My World Page 25

1. The bowl contained 16 pieces of fruit. There were 6 apples and 4 pears. The rest of the fruit was bananas. How many bananas were there? ______ 2. Tyree has 12 frogs. Three are tree frogs, 2 are leopard frogs, and the rest are bullfrogs. Which is one way to find out how many bullfrogs Tyree has? a) Subtract 2 from 12. b) Add 12, 2, and 3. c) Subtract 5 from 12. d) Add 5 to 12. Page 26

Comparing the Patterns Patterns on the Hundreds Chart In red create an increasing pattern on the hundreds chart. In blue create a decreasing pattern on the hundreds chart. Comparing the Patterns Increasing Decreasing Same ********************************************************** Increasing or Decreasing Patterns in My World Page 27

_______________________ 1. On the hundreds chart create a pattern that decreases by 4. Describe your pattern 3 ways: _______________________ 2. On the hundreds chart Susan colored a pattern using the numbers 56, 62, 68, and 74. Write the next four numbers in her pattern. Next four numbers: ____, _____ Page 28

Patterns on Number Lines Pick any 2-digit number to begin the number line. Fill in the rest of the boxes making a +4 pattern. What strategy did you use to help you find the right numbers for the boxes? _________________________________ How is a pattern on a number line similar to a pattern on a hundreds chart? _________________________________ ********************************************************** Number Line Patterns in My World Page 29

13 16 19 22 1. Fill in the missing numbers on the number line. (Remember to use the 4-step process.) 13 16 19 22 2. Jill created the pattern below for her friend. She left out a number. What number is missing? 21 27 33 45 51 a) 39 b) 40 c) 41 d) 38 Page 30

Paired Numbers in My World Paired Numbers and Tables Make a table giving information about the wheels on in-line skates. Skates Picture Wheels Why do we make tables to show information? _________________________________________________ ********************************************************** Paired Numbers in My World Page 31

Triangles Picture Sides 1. Mia makes 3 necklaces every time her sister, Julie, makes 2. When Mia has made 15 necklaces, how many will Julie have made? Mia Julie a) 12 b) 10 c) 8 d) 20 2. How many sides are on 4 triangles? ______ Triangles Picture Sides Page 32