Sam received 87 dollars for his birthday. He went to a sporting goods store and bought a baseball glove, baseball, and bat. He had 10 dollars left over, how much did he spent on the baseball gear?
4 Answers
Explanation:
$77
Explanation:
This can be solved by
#color(blue)"subtracting"# 10 from 87That is 87 - 10 = 77
or by
#color(blue)"counting on" # from 10 to 87
#10to20=color(red)(10)#
#20to30=color(red)(10)#
#30to40=color(red)(10)#
#40to50=color(red)(10)#
#50to60=color(red)(10)#
#60to70=color(red)(10)#
#70to80=color(red)(10)#
#80to87=color(red)(7)# Total spent is then
# = color(red)(10+10+10+10+10+10+10+7)=$77#
He spent $77
Explanation:
Although the calculation is very easy, the purpose of this type of question is to be able to interpret 'word sums' and decide on a correct operation.
We are actually looking for "THE DIFFERENCE" between the amount of money he started with and the amount he had at the end.
"DIFFERENCE" means subtract.
He spent $77.
A slightly different way of dealing with subtraction.
Explanation:
Received
But
After spending some money he had