Error Intervals and Rounding

What is the upper bound and lower bound of 390 grams, measured to the nearest 10 grams?

• 395 and 385

• 390.5 and 389.5

• 400 and 300

• 400 and 350

Tags

CCSS.6.NS.C.7

What is 89,555 rounded to the nearest 10, 100 and 1,000?

• 89560 89500 and 89000

• 89550 89600 and 89600

• 89560 89600 and 90000

• 89560. 89600. and 89000

Round 248.561 to 1 decimal place

• 248.5

• 249

• 248.56

• 248.6

Round 53,879 to 2 significant figures.

• 53,800

• 53,900

• 53,88

• 54,000

The number 79 has been rounded to the nearest unit. Find its lower and upper bounds

• 78.5  ≤ 79  <79.5

• 78 ≤ 79 <80

• 78.4 ≤ 79 <79.4

The number 10 has been rounded to the nearest whole number. Find its lower and upper bounds

• 9 ≤ 10 < 10

• 9.5  ≤ 10  < 10.5

• 9 ≤ 10 < 11

The number 16 has been rounded to the nearest integer. Find its lower and upper bounds

• 15 ≤ 16 < 17

• 15 ≤ 16 < 16

• 15.5  ≤ 16  < 16.5

The number 1000 has been rounded to the nearest 100. Find its lower and upper bounds

• 950  ≤ 1000  < 1050

• 950 ≤ 1000 < 1050.1

• 950 ≤ 1000 < 1051

The number 51.2 has been rounded to the nearest 1 decimal place. Find its lower and upper bound

• 51.1 ≤ 51.2 < 51.2

• 51.15  ≤ 51.2  < 51.25

• 51 ≤ 51 < 51

To the nearest thousand, 90 000 cars drive through the road toll in one week.Write down the lower bound for this number of cars.

• 85000

• 89950

• 89500

• 89999.5

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3