shelley spent 17 minutes washing the dishes. she spent 38 minute cleaning her room. Explain how can use mental math to find how
long shelley spent on the two tasks.
1 answer:
If we would using mental math, we would estimate the washing dishes to 20 minutes, and cleaning 40 min,
together 20+40 min
is 60 minutes, aprox 1 hour
Shelly spent almost 1 hour cleaning
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