Question 1

Round to the indicated place value.
-Round to the nearest one: 341.17

Accepted Answer

Rounding to the nearest one, we look at the digit to the right of the ones place, which is 1 (in the tenths place). Since it is less than 5, we round down, leaving the number as 341.

Question 2

Round to the indicated place value.
-Round to the nearest one: 8189.83

Accepted Answer

The digit to the right of the ones place is 9, which rounds up, making 8189.83 round to 8190 to the nearest whole number.

Question 3

Round to the indicated place value.
-Round to the nearest hundred: $21,433.23$

Accepted Answer

When rounding to the nearest hundred, you look at the tens place to decide whether to round up or down. Since the tens place in 21,433.23 is 3, and the number immediately after it (in the ones place) is 3 as well, you round down, making it 21,400.

Question 4

Round to the indicated place value.
-Round to the nearest ten: $19,725.23$

Accepted Answer

The digit in the tens place is 2, and the digit to its right is 5. According to rounding rules, if the digit to the right is 5 or more, you round up. Therefore, 19,725.23 rounded to the nearest ten is 19,730.

Question 5

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Question 6

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Question 7

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Question 8

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Question 9

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Question 10

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Question 11

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Question 12

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Question 13

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Question 14

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Question 15

Add.
-$4.9514+3.9563$

Accepted Answer

Adding the two numbers directly, $4.9514 + 3.9563 = 8.9077$.

Question 16

Add.
-$0.287+8.1$

Accepted Answer

Adding $0.287 + 8.1$ gives $8.387$.

Question 17

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-$3.7+0.619+45$

Accepted Answer

The sum of 3.7, 0.619, and 45 is 49.319.

Question 18

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-$61.17+5+90.74+44.008$

Accepted Answer

The answer of Add.
-$61.17+5+90.74+44.008$
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Question 19

Add.
-$38+6.3+20.569+2.06$

Accepted Answer

Adding the numbers $38 + 6.3 + 20.569 + 2.06$ gives $66.929$.

Question 20

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-$363.1+0.23+54.78+54+6.2$

Accepted Answer

The sum of the numbers is 478.31.

Quiz 3: Decimal Notation

Round to the indicated place value. -Round to the nearest one: 341.17

Round to the indicated place value. -Round to the nearest one: 8189.83

Round to the indicated place value. -Round to the nearest hundred: $21,433.23$

Round to the indicated place value. -Round to the nearest ten: $19,725.23$

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Add. - $4.9514+3.9563$

Add. - $0.287+8.1$

Add. - $3.7+0.619+45$

Add. - $61.17+5+90.74+44.008$

Add. - $38+6.3+20.569+2.06$

Add. - $363.1+0.23+54.78+54+6.2$

Quiz 3: Decimal Notation

Round to the indicated place value. -Round to the nearest one: 341.17

Round to the indicated place value. -Round to the nearest one: 8189.83

Round to the indicated place value. -Round to the nearest hundred: 21,433.2321,433.2321,433.23

Round to the indicated place value. -Round to the nearest ten: 19,725.2319,725.2319,725.23

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Add. - 4.9514+3.95634.9514+3.95634.9514+3.9563

Add. - 0.287+8.10.287+8.10.287+8.1

Add. - 3.7+0.619+453.7+0.619+453.7+0.619+45

Add. - 61.17+5+90.74+44.00861.17+5+90.74+44.00861.17+5+90.74+44.008

Add. - 38+6.3+20.569+2.0638+6.3+20.569+2.0638+6.3+20.569+2.06

Add. - 363.1+0.23+54.78+54+6.2363.1+0.23+54.78+54+6.2363.1+0.23+54.78+54+6.2

Round to the indicated place value. -Round to the nearest hundred: $21,433.23$

Round to the indicated place value. -Round to the nearest ten: $19,725.23$

Add. - $4.9514+3.9563$

Add. - $0.287+8.1$

Add. - $3.7+0.619+45$

Add. - $61.17+5+90.74+44.008$

Add. - $38+6.3+20.569+2.06$

Add. - $363.1+0.23+54.78+54+6.2$