1. Sandra, Deacon, and Breanna read 5 + 6 + 7 = 18 books total. Since one book was read by all three, it was counted three times but should only be counted once. So subtract 2 extra counts: 18 - 2 = 16 different books.
2. Total test tubes needed: 8. First experiment used 2. Remaining for two experiments: 8 - 2 = 6. Each of the other two experiments used 6 ÷ 2 = 3 test tubes.
3. Combined allowance: $7 + $7 = $14. After buying movie ticket: $14 - $12 = $2 left. They bought $1 containers of fruit salad, so they bought 2 containers. Split evenly: 2 ÷ 2 = 1 container each.
4. Before broken arm: 9 words/minute × 5 minutes = 45 words. After broken arm: 6 words/minute × 5 minutes = 30 words. Difference: 45 - 30 = 15 words.
5. Saved $6 per week for 8 weeks: 6 × 8 = $48. Bicycle cost $50. She has $48 - $50 = -$2, so she is $2 short.
6. The problem does not provide specific hours or data to calculate exact time spent. Therefore, no numerical answer can be determined from given information.
Parent Tip: Review the logic above to help your child master the concept of multi step word problems 6th grade worksheet.
