A) estimate 49 of 162.
B) use mental math to calculate 49 of 162
please help me with this question
ANSWER for A
49%=49 49 x 162=79.38 The estimation 79.00=79
To estimate 49 of 162:
A) One way to estimate 49 of 162 is to round both 49 and 162 to the nearest tens. In this case, 49 is already a multiple of 10, so it remains the same. 162 rounds to 160. Then, you can calculate 49% of 160, which is approximately 78. Thus, an estimate of 49 of 162 is around 78.
To use mental math to calculate 49 of 162:
B) One trick for finding percentages mentally is to break down one of the numbers into more manageable pieces. In this case, you can break down 162 into 160 + 2.
Now, let's calculate 49% of 160 and add it to 49% of 2:
49% of 160 = (50% of 160) - (1% of 160)
= 80 - 1.6
= 78.4
49% of 2 = (50% of 2) - (1% of 2)
= 1 - 0.02
= 0.98
Finally, add these two results together:
78.4 + 0.98 = 79.38
So, using mental math, we find that 49 of 162 is approximately 79.38.