Answer:
Step-by-step explanation:
Estimating a sum by rounding to get the best estimate is the goal of this lesson. Notice that we try to estimate. We don't need to have an exact answer!
Notice that for numbers with two digits, there can only be one estimate because you can only round to the tens place.
Estimate the following sums: 36 + 21, 74 + 15, and 85 + 24
36 + 21 = 40 + 20 = 60
74 + 15 = 70 + 20 = 90
Y= 8x-9, because I need more characters
Answer:2000
Step-by-step explanation:2500x0.2=500
2500-500=2000
Answer:
6 inches
step-by-step explanation:
A=6a^2=6x6^2=216
