Question

Jorge has a book with 148 mazes.he completed 93 of the mazes and wants to use mental math to find the number of mazes left to complete.first,he adds 7+93 to get 100. What should his next step be? How many mazes are left to complete?

Answer 1

From 100, do 148-100 = 48. then 48 add 7 to make 55. that means the answer is 55 mazes left to complete.

another way would be 148 - 93 = 

148
 93  -