E – ASD – WP8

Your friend owes you $423.57. He gives you $198.52 at the first of the month and $215.52 at the end of the month. How much money does your friend still need to give you?

E – ASD – WP9

Joe spent $8.25 for a taxi on Monday and $5.72 for a taxi on Tuesday. How much money did Joe spend on taxis during those two days?

P – EC – WP11

Students were asked to estimate how many cars were in the parking lot. Sammy said her estimate was 50. She used 5 as a referent, and skip counted by five 10 times. Sammy said there were about five cars in each row and there were about 10 rows. Is Sammy’s...

P – EC – WP12

Students were asked to estimate how many cars drove by the school during lunch. Marsha said her estimate was 20. She used 5 as a referent, and skip counted by five 4 times. Sammy said that five cars went by during the first 5 minutes of lunch and there were 20 minutes...

P – EC – WP13

Two children were looking at stars in the sky. To estimate the number of stars in the sky, one child said she would use a referent of 5 while the other child said she would use a referent of 50. Which referent would be more suitable for estimating stars in the sky?...

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