1. Mental Math

Estimate the difference of 612 - 389
Record the friendly numbers you used and your ~ answer.

Estimate what 50% of 92 is.
Record the friendly numbers you used and your ~ answer.
2. Number Sense

Use paper and pencil to calculate: 4603 － 376

Use paper and pencil to calculate: 8762 ➗ 13
3. Measurement

Find the perimeter of this shape:

Find the perimeter and area of this shape.
Be sure to use FSCU.
4. Algebra

Translate into algebra (Mathish): 12 decreased by a number is 4

Translate into algebra (Mathish): half of a number is 7

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.