The picture shows how Jada sorts the shapes on her table.

1. How many squares? _______
2. How many triangles? _______
3. Which shape has the fewest number? _______

The table shows the favorite class pet of some students.

1. How many more students prefer hamsters to rabbits?
2. How many fewer students prefer rabbits to turtles?

Count each kind of shape. Write the numbers on the chart.

Find the value of each expression.

1. \(9 - 2\)
2. \(5 + 3\)
3. \(2 + 8\)
4. \(7 - 4\)
5. \(10 - 3\)
6. \(1 + 6\)

Jada plays "What's Behind My Back?” with Han. Han has 10 connecting cubes. He shows Jada these cubes.

1. How many connecting cubes are behind Han’s back?
2. Write an addition equation that matches the game.
3. Write a subtraction equation that matches the game.

Find the number that makes each equation true. Show your thinking using drawings, numbers, or words.

1. \(20 - 10 =  \underline{\hspace{0.9cm}}\)
2. \(17 +  \underline{\hspace{0.9cm}} = 20\)
3. \(20 = 5 +  \underline{\hspace{0.9cm}}\)
4. \(7 = 20 -  \underline{\hspace{0.9cm}}\)

Here are 7 numbers on cards.

• 1
• 2
• 3
• 5
• 6
• 7
• 9

1. Choose 3 numbers to add. Get as close as you can to 20.
2. Write the equation.

Find the value of each sum. Show your thinking using drawings, numbers, or words.

1. \(31 + 15\)
2. \(17 + 8\)
3. \(26 + 17\)

Choose 3 of these 7 cards. Get as close to 20 as you can.

• 1
• 3
• 4
• 5
• 7
• 8
• 9

1. Can you make 20?
2. Can you make 20 in more than 1 way?
3. Can you make 20 using the number 1 card?

Clare has the 1, 2, 3, 4, 5, 6, 7, 8, and 9 cards.
She chooses 7 cards. Claire can’t make 20 with 3 of her 7 cards. Which 3 cards do you think she chose? Explain your reasoning.