How many beans are there?

Record an estimate that is:

1. Mai wants to know how many balloons her mom blew up. She looks at the balloons. She estimates that there are about 10.

   estimate

   find an exact amount

2. Mai helps her mom bake cupcakes. They estimate that about 15 children are coming to the party. They make 15 cupcakes.

   estimate

   find an exact amount

3. Mai sees the party hats on the table. She estimates that there are about 20 hats. She decides that is enough for everyone to get one.

   estimate

   find an exact amount

4. Mai hangs up a birthday sign with lots of stars on it. She estimates that there are about 50 stars.

   estimate

   find an exact amount

1. Sort the pictures into these 3 categories:

   less than 20

   20–50

   more than 50

2. Andre’s teacher needs at least 25 crayons. Do you think he should count the crayons to get an exact number? Explain your reasoning.

3. Andre’s teacher needs 15 paper clips. Do you think he should count the paper clips to get an exact number?
   Explain your reasoning.