. Estimate the sum of 405 and 385 byrounding to the nearest hundred. Explain

Mathematics

2 answers:

mars1129 [50]3 years ago

8 0

Answer:

800

Step-by-step explanation:

Round 405 to 400

Round 385 to 400

400+400=800

inn [45]3 years ago

8 0

Answer:

800 to the nearest hundred

Step-by-step explanation:

To Estimate the sum of 405 and 385, we will add 405 together with 385 I.e 405+385 to get 790.

Rounding 790 to a hundred is 800 since the second place value in 790 which is '9' is greater than 5, we will add 1 to the first place which is 7 to give us 8. This will change the second place value to '0' which make the value of 790 to be 800 to a hundred.

Note that 1 can only be added to a preceding value of a number if the succeeding value is greater than 5.

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