In 2 boxes on 60 pieces of Chalk in a week 23 pieces of Chalk how many pieces of Chalk remained were spent

99
1) 2*60=120 (m) - only 2) 120-23=97 (m) - sotatsya the answer: 97 melkovbylo - 2 buildings on 60 pieces. Spent - 23 to. Remained - to. 2 * 60 = 120 (to.) 120 - 23 = 97 (to.) Answer: 97 pieces of chalk remained
167
Answer add