Subtract using a number line. 10 – 3

During his first year of college, John incurs the following expenses:  $3000 on tuition, $1000 on books, $3600 on food, and $8000 on rent.  If John earned $9000 during the year by working part-time, and the rest of the expenses were paid by his parents, how much did his parents pay?

What multiplication is suggested by the below model:

Decide which property is illustrated. (6x)(y+15) = (6x)(y)+(6x)(15)

Solve using “Repeated Subtraction”. 12462{“version”:”1.1″,”math”:”12462″}

Solve using the “Scratch” algorithm.

Decide whether or not the set is closed under multiplication {1,2,3,4,…,40}

Write the base-four numeral for the base-four blocks shown.

Solve using the “Place Value” method.

Perform the operation using the indicated base.  HINT:  you may want to think about it in terms of concrete blocks