There were $14$14 flowers in Eileen’s garden. $3$3 more flowers grew, then Eileen picked $6$6 flowers to put in a vase.
Which number sentence matches the word problem for the number of flowers left in the garden?
How many flowers are left in the garden?
Neil has $20$20 dollars. He spends $5$5 dollars on a new book, then earns $12$12 dollars from refereeing later in the week.
The temperature on Monday was $21$21 degrees Celsius. The temperature dropped by $9$9 degrees on Tuesday and rose $5$5 degrees on Wednesday.
uses mental and written strategies for addition and subtraction involving two-, three-, four and five-digit numbers