Rounding
Ricky has 4 bags of marbles with 9 marbles in each bag. Lyla has 21 marbles. The equation shown can be used to find how many more marbles, m, Ricky has than Lyla.
21 + m = 4 × 9
What is the value of m ?
Simon bakes a small cake for his family. The cake is cut into 8 equal pieces. Simon and his family eat a total of 3 pieces.
What fraction of the cake is left over?
Alonzo delivers food three days a week. He drives 95 miles during his first day, 99 miles during his second day, and 97 miles during his third day. When he finishes his third day, Alonzo tells his boss that he drove a total of 301 miles.
Is Alonzo correct, and why?
*He never drove more than 100 miles in a day so he couldn't have driven over 300.