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Math Corner: Number Sentence, Equations, and Measurement

Test your math skills with number sentences, equations, and measuring in inches, feet, liters, and grams. Solve problems and explain your answers using pictures, numbers, and words.

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Math Corner: Number Sentence, Equations, and Measurement

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  1. Week 1

  2. Math Corner-Monday Are the number sentences below true or false? Explain why. 5 + 7 = 3 + 2 + 2 + 5 6 = 4 + 18 = 10 - 1 Bonus: Name appropriate reasons to measure using inches, feet, liters and grams.

  3. Math Corner-Tuesday Jerome had 56 apples in 7 bags. Write the equation to determine how many apples are in each bag. Check your work by drawing a picture and using the opposite operation. Bonus! In which place should you look to decided whether 8,647 is less than or greater than 8,674? Aaron has a 82 marbles. 41 are red, the rest are blue. What equation would represent this information? Explain how to find the number of blue marbles.

  4. Extended Response 1. A large park has 58 trees and 245 flowers. Part A What is the total number of trees and flowers in the park? Show your work. Part B Round the number of trees to the nearest 10. Part C Round the number of flowers to the nearest 100. Part D The park also has benches. The number of benches rounded to the nearest 10 is 30. How many benches could possibly be in the park?

  5. Math Corner-Wednesday Bonnie drew a rectangle. It has a perimeter of 18 inches and the area is 18 inches. What is the length and width of this rectangle? Explain your answer using pictures, numbers, and words. Bonus: James drew the model of 4/1 shown below. Which number is EQUAL to 4/1? Explain your thinking. How do you know? Write an example of 9/1.

  6. Math Corner-Thursday Miguel drew a square that measures 6 inches on each side. Part A: What is the area and perimeter of Miguel’s square? Part B: If Miguel draws a rectangle that measures 10 inches by 2 inches, will the perimeter be greater than, less than, or equal to the square? Explain your thinking. Part C: Miguel’s friend Zan is making a quilt with an area of 36 inches. Draw, label, and explain how quilt could look.

  7. There are 23 students in each third grade class at Smith Elementary. There are 92 students in the third grade. How many classes are there? Explain your thinking with pictures, numbers, and words. Bonus: Compare ¾ and 3/8 using >, <, or = Use pictures, numbers, and words to explain your answer. Math Corner-Friday

  8. Week 2

  9. Math Corner-Monday Dolores has the following shapes on the floor: Shape A Shape B Shape C 6m 7m 9m 6m 5m 4m Part A: What are the missing dimensions on each shape? How do you know? Explain your thinking. Part B: What is the area and perimeter of each shape? Part C: Draw 3 new shapes. Make your new shapes to have the same area as each shape above. What are your dimensions?

  10. Math Corner-Tuesday Emily begins to count by 4’s. Jamarcus begins to count by 6’s. What is the first number that will be said by both of them? Justify your explanation. Hint: Draw a T chart to help! Bonus! Edgar is skip-counting. He says, 2, 4, 6, 8, and 10. If he continues, what will be the twentieth number Edgar says?

  11. Extended Response Sofia made a picture graph to show how the students in her grade get to school each morning. Part A How many more students walk to school than ride the bus? Part B Represent this graph as a line plot. Part C How would the graph change if each face value was 10?

  12. Math Corner-Wednesday 8, 15, 21, 28, 34 … • What are the next three numbers in the pattern? • What is the rule? • Explain how you figured this out. Bonus: Mrs. Hodges bought 50 inches of ribbon to decorate 2 shirts. She used 18 inches of the ribbon for each shirt. How much ribbon did she have left?

  13. Draw the chart below in your Math Journal. Compare the following fractions to 3/6 by placing them in the correct group. Explain how you know your answers are correct. Bonus! John says that 56-23 = 60-27. Is his thinking correct? If so, explain why. If not, explain his mistake. Math Corner-Thursday

  14. Dinah has been baking cookies by the dozen. She has baked 84 cookies. How many dozens of cookies has she baked? Show your thinking in words, numbers, and pictures. Bonus! There are 27 groups of 9. Find the product three different ways. Math Corner-Friday

  15. Week 3

  16. Melia ate 2/4 of a sub sandwich for lunch. Carrie ate 2/6 of the same size sandwich for lunch. Melia said she ate more than Carrie because 2/4 >2/6. Carris said that she ate more because 2/6 > 2/4. Who is correct? What error could have the other person made? Bonus! The school stage is 42 inches high. A flagpole is set up on the state. The flagpole is twice the height of the stage. How many inches is it from the bottom of the stage to the top of the flagpole? Math Corner-Monday

  17. Eleanor wants to share a bag of candy with her 5 friends. The bag says there are 73 pieces of candy in the bag. How many pieces candy will Eleanor and her friends get? Will there be leftovers? If so, how many? Bonus! Kali hiked for 2 hours and 45 minutes. If Kali started at 3:15 PM, what time did she stop hiking? Math Corner-Tuesday

  18. Cesar is working in his garden. He has to plant 48 tomato plants. If he plants them in even rows, how many different ways can he plant his garden? Show your thinking with pictures and words. Bonus! Ms. Johnson opened 3 out of 4 cases from the store. If the fourth case follows the same pattern, how many squares will be in the 4th case? Math Corner-Wednesday

  19. Extended Response Jermaine made the table shown below to find the cost of picture frames at a shop. Part A Jermaine used the expression shown below to find the cost shown in the table for selling f number of picture frames. 5 x f Show the work or explain how he used the expression to find each cost in the table. Part B Explain how Jermaine can use the cost for 4 picture frames to find the cost of 12 picture frames. Part C Explain when the cost of the picture frames is an even number and when the cost of the picture frames is an odd number.

  20. My figure has a perimeter of 58 inches. Draw 3 examples of what the length of each side could be. Bonus: Marco writes the equation below to solve a problem about his model cars. 18 6 = 3 Write a word problem to match Marco’s equation. Math Corner-Thursday

  21. Lucas measured the mass of several items. One glue stick has a mass of 10 grams. One glue stick and 1 crayon have a mass of 25 grams. One crayon and 1 pencil have a total mass of 23 grams. Part A What is the mass of 1 crayon in grams? Part B What is the mass of 1 pencil in grams? Part C What is the total mass of 1 crayon, 1 pencil, and 1 glue stick in grams? Math Corner-Friday

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