1. Addy spent the least amount of time running over the five weeks.
- To find this, convert each runner's weekly times to total seconds and sum them.
- Addy: (2×60+5) + (2×60+2) + (2×60+8) + (2×60+0) + (1×60+55) = 125 + 122 + 128 + 120 + 115 = 610 seconds.
- Subby: (1×60+55) + (1×60+56) + (2×60+5) + (2×60+14) + (2×60+20) = 115 + 116 + 125 + 134 + 140 = 630 seconds.
- Since 610 < 630, Addy spent less total time.
2. Multi spent the least amount of time running over the five weeks.
- Convert each runner's weekly times to total seconds and sum them.
- Divvy: (4×60+20) + (4×60+25) + (4×60+1) + (4×60+5) + (4×60+10) = 260 + 265 + 241 + 245 + 250 = 1261 seconds.
- Multi: (4×60+40) + (4×60+22) + (4×60+12) + (4×60+10) + (3×60+58) = 280 + 262 + 252 + 250 + 238 = 1282 seconds.
- Since 1261 < 1282, Divvy spent less total time.
Parent Tip: Review the logic above to help your child master the concept of time duration worksheet year 3.
