25-26 3rd Grade Math G1

Part A: The rectangular garden at Oakwood Elementary is represented in the figure. The perimeter of the garden is 132 yards. What is the missing side length, in yards, in the figure?

• 25 yards

• 30 yards

• 28 yards

• 34 yards

Tags

CCSS.4.MD.A.3

Part B: Oakwood Elementary builds a new rectangular garden with the same perimeter of 132 yards, but the side lengths are different. Which of these could be the side lengths of the new garden?

• 24 yards by 44 yards

• 25 yards by 42 yards

• 30 yards by 36 yards

• 27 yards by 40 yards

Ken draws a rectangle with an area of 48 square inches. The width of the rectangle is 6 inches. What is the length, in inches, of Ken’s rectangle?

• 7 inches

• 8 inches

• 9 inches

• 10 inches

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

Lena has different colored buttons as shown. She wants to determine the total number of buttons she has altogether.

• 24 blue

• 22 orange

• 34 red

• 30 yellow

Part A: Lena explains there are a total of 950 buttons because 9 + 5 + 0 = 14 in the ones place, so she writes down 14. Then 2 + 2 + 3 + 0 = 7 in the tens place, so she writes down 7 in front of the 14. Explain why Lena’s reasoning is incorrect. Find the total number of buttons she has altogether. Enter your answer and your explanation.

Tags

CCSS.5.NBT.B.7

Part B: Lena explains there are 30 more red buttons than orange buttons because the smaller number is always subtracted from the larger number. So she got 2 – 1 = 1 in the ones place and 3 – 2 = 1 in the tens place. Explain why Lena’s reasoning is incorrect. Find how many more red buttons than orange buttons she has. Enter your answer and your explanation.

Tags

CCSS.7.NS.A.1C

Which three comparisons are true?