Question

for each expression, estimate to decide whether the sum is closer to 400 or 500. closer to 400 203 + 200 closer to 500 311 + 198 192 + 277 285 + 223 310 + 116

Explanation:

Step1: Estimate the sum of 310 + 116

Round 310 to 300 and 116 to 100, so 300 + 100 = 400. But let's do a better estimate. 310 is close to 300, 116 is close to 120. So 300 + 120 = 420. Or just calculate the actual sum: 310 + 116 = 426.

Step2: Compare 426 to 400 and 500

The distance from 426 to 400 is |426 - 400| = 26. The distance from 426 to 500 is |426 - 500| = 74. Since 26 < 74, 426 is closer to 400.

Answer:

Closer to 400