a) Estimate 51% of 162.
b) Use mental math to calculate 51% of 162.
51% is about half.
Use mental math to tell what 1/2 (half) of 162 is.
okay class so first of all you estimate and then solve
To estimate 51% of 162, we can round 162 to the nearest ten and then divide it by 2.
a) Estimate 51% of 162:
Step 1: Round 162 to the nearest ten, which is 160.
Step 2: Divide 160 by 2 to find the estimate: 160 ÷ 2 = 80.
Step 3: Add 1% of 162 to the estimate: 1% of 162 is 1.62, so 80 + 1.62 = 81.62.
Therefore, an estimate of 51% of 162 is approximately 81.62.
b) To use mental math to calculate 51% of 162:
Step 1: Divide 162 by 100: 162 ÷ 100 = 1.62
Step 2: Multiply the result by 51: 1.62 × 51 = 82.62
Therefore, 51% of 162 is exactly 82.62.