Getting Ready for 2nd Grade Summer Practice Book Math, Common Core
Answer Key
Name ____________
1. Sue has 5 yellow flowers. She picks 6 more. Write a number sentence to show how many flowers Sue has in all. 5 + 6 = 11
2. Some boats are in the river. Three more boats join them. There are now 14 boats in the river. How many boats were in the river before?
11 + 3 = 14
3. There were 13 butterflies. Two flew away.
How many butterflies are there now? 11
4. There are 12 giraffes at the zoo. Seven are big and the rest are small. Write a number sentence to show how many are small.
Examples include: 7 + 5 = 12 12 – 7 = 5
5. Marty has 6 books. His brother gives him more. Marty now has 9 books. How many books did Marty’s brother give him?
Think 6 + 3 = 9
So 9 – 6 = 3
6. Use this addition sentence to write a related subtraction sentence. 6 + 8 = 14. 14 – 8 = 6 or 14 – 6 = 8
7. Which makes the sentence true?
12 – 4 = 2 + ______
a. 5 b. 6 c. 7 d. 8
8. Begin with 46 and count up to 52.
46, 47, 48, 49, 50, 51, 52
9. Circle the number that is less.
This one!
Did the tens or the ones help you decide? Ones
10. Compare the number of fish using <, >, or =.
<
11. Use <, >, or = to compare these numbers.
> 12. Use the hundred chart to add. Count on by
ones or tens. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
71 + 12 = 83 49 + 40 = 89
13. Sonny has 43 big shells and 31 small shells. Use tens and ones to show how many shells Sonny has in all.
Tens Ones 4 3 3 1 7 tens + 4 ones = 74 14. Write the difference then write how many tens. 60 – 10 = 50 5 tens 15. Mika has 10 more toy cars than Jeff.
If Jeff has 16, how many does Mika have?
26
16. A red ribbon is about 3 long.
A blue ribbon is about 4 long.
A green ribbon is about 2 shorter than the blue ribbon.
Using a red, blue, and green crayon, draw the ribbons below from shortest to longest. ________ _____________ ___________________
17. Use the picture graph below.
How many animals are on the farm? 7
18. Dan measures his ribbon with .
About how long is Dan's ribbon? 3 ’s
19. What time is on each clock?
2:00 1:30
20. How many sides? 8 How many vertices? 8
21. How many make a ? 3
22. Circle the cone.
Be sure the cone is circled! 23. The cherry on top of the ice cream is
a. a cylinder b. a rectangle c. a sphere d. a cube
24. Draw a line to show halves.
25. Color a quarter of this shape. Be sure 1 of the 4 portions is shaded!
Electronic Resources for Parents and Students: http://www-k6.thinkcentral.com Go Math! Houghton Mifflin Harcourt Online Resource Link with access to animated models, math games, math textbook, e-Glossary, etc. http://pta.org/parents/content.cfm?ItemNumber=2583&RDtoken=51120&userID The PTA’s Parents’ Guide to Student Success (in English and Spanish) was developed in response to the Common Core State Standards The Guide includes key items that children should be learning and activities that parents can do at home to support their child's learning. http://www.sumdog.com A variety of games focusing on Common Core math standards, progressing in level of difficulty as students show mastery, is a sure hit! Your student may already have a login! http://kids.search.aol.com/search?q=kindergarten+math AOL Math support with a variety of games to assist with computation skills. https://www.xtramath.org Free web based math fluency program with regular progress reports sent to parents/teachers. http://www.amathsdictionaryforkids.com/dictionary.html Fun on-line math dictionary for students and also has over 250 printable materials for parents! https://www.pbskidsplay.org/playnow/?CPLAYSM&btn=1 Hundreds of free interactive games based on national standards. These resources and learning links will be available through a Symbaloo Parent Portal link on the WCS website soon! In the meantime, click these live links to explore the fun! Number and Operations in Base Ten Learning Links
Make Combinations of Ten
Tens and Ones
Equal or Not Equal Sum Sense
Operations and Algebraic Thinking Learning Links
Grouping in 5's and 10's Subtraction Machine Ten Frames Tom and Jerry Addition
Measurement and Geometry Learning Links
Shape Names Tallest and Shortest Dinosaur Train Draw With Shapes
Measure with Units Identify Time to the 1/2 Hour Solid Figures
Enrichment Learning Links
Number Puzzles Math Magician Ghost Blasters 2 Adding and Subtracting with Base Ten Blocks
Math iPad Apps for Grades K-2
My First Tangrams http://ar-entertainment.net/learning
Animals Counting Writing Game Free Lite HD - for iPAD
Math Attack
Mia's Playground
ACE Multiply
Calc Shoot Lite
2nd Grade Math
Base Ten Number Blocks
ladybug Count
Math Circus
Adventures UnderSea Subtraction HD Free Lite
Math Adventures: Number Find
SAS Flash Cards