5th grade math
posted by pat on .
circle the best estimate for each problem. then solve.
52.2*39.7=_____ A.2,00 B.20,000 C.200,000
Solution:_______________________.
148.3*232.51=____ A. 3,000 B.30,000 C.300,000 Solution ________________.
please! show me work too so, i can practic for this week tests thank you!!

#1 
52.2 is close to 50, and 39.7 is close to 40. If you multiply 50*40, what do you get?
#2 
148.3 is close to what? 150, right?
232.51 is close to what? 230, right? What happens when you multiply those two estimates?
Use Google to check your multiplication:
1. Go to http://www.google.com
2. Enter 50*40 and press Enter.
3. Did you get the right answer?
4. Try it again for the second problem.