Determine whether a group of objects within 20 has an odd or even number of members (e.g., by pairing objects or counting them by 2s). Write an equation to express an even number as a sum of two equal addends.
Example Problems
Mr. Patel planted 9 tomato seeds and 6 pepper seeds in each row of his garden. He planted 8 rows in total.
Write a numerical expression to show the total number of seeds Mr. Patel planted.
Write a numerical expression to show the total number of seeds Mr. Patel planted.
Carlos swam 2 laps in the morning and 3 laps in the afternoon for 10 days.
Write a numerical expression to show his total laps swum.
Write a numerical expression to show his total laps swum.
Danny ran 4 miles in the morning and 2 miles in the afternoon. He did this for 4 days.
Write a numerical expression to show how many total miles he ran.
Write a numerical expression to show how many total miles he ran.
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