2nd Grade Envisions Topic 2: Work with Equal Groups

Cesar writes an equation. The sum is an even number greater than 10. Which equation does Cesar write?

• 6 + 6 = ?

• 5 + 6 = ?

• 5 + 5 = ?

• 6 + 7 = ?

Mrs. Stone has 3 rows of green beans with 4 plants in each row. Which equation shows how many green bean plants Mrs. Stone has?

• 3 + 3 + 3 + 3 = 12

• 3 + 4 = 7

• 4 + 4 + 4 = 12

• 3 + 3 = 6

Is the sum of 3 + 5 = 8, even or odd?

• even

• odd

Is the sum of 6 + 5 = 11, even or odd?

• even

• odd

Vivian went to the grocery to buy cookies. She saw a package with 4 rows. Each row had 5 cookies.

Which picture matches the array of cookies?

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Which written equation matches the correct answer to #5?

• 4+ 4 + 4 + 4 = 16

• 5 + 5 + 5 + 5 = 20

• 4 + 4 + 4 + 4 + 4 = 20

• 4 + 5 = 9

How many cars are shown? Is the number even or odd?

• 7, even

• 7, odd

• 8, even

• 8, odd

Emily has 12 beads. Tell which equations Emily can use to make an array with the beads. Choose all that apply.

• 2 + 2 = 4

• 3 + 3 + 3 + 3 = 12

• 10 + 2 = 12

• 4 + 4 + 4 = 12

Jason drew this bar diagram to show that 2 equal groups can make 16. Which picture shows what the "?" stands for?

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Jason changes the 16 to a 14 in the diagram. What does the diagram stand for now?

• 7

• 8

• 10

• 6