소수의 자릿값과 반올림 단원 종합

L.1Write the value of the underlined digit as a decimal.

1. 1
   $25.9\underline{1}3$ 
2. 2
   $84.4\underline{4}4$ 

L.2Fill in each box.

1. 3
   In $91.\underline{2}\underline{2}4$, the first $2$ is worth ​ times as much as the second $2$.
2. 4
   In $48.\underline{3}1\underline{3}$, the first $3$ is worth ​ times as much as the second $3$.

L.3Write each decimal in the form asked for.

1. 5
   Write as a decimal: seventy-three and forty-four hundredths
2. 6
   Write as a decimal: eighty-two and nine hundred forty-one thousandths

L.4Write each number in the form asked for.

1. 7
   Write in expanded form: $76.421$

L.4Write each number in the form asked for. (continued)

1. 8
   Write in expanded form: $51.959$

L.5L.6Write >, <, or = in each circle.

1. 9
   $11.43$$11.09$
2. 10
   $8.96$$8.766$
3. 11
   $\frac{1}{2}$$0.7$
4. 12
   $0.34$$\frac{7}{20}$

L.7Write the numbers in the order shown.

1. 13
   Greatest to least: $2.2$; $2.9$; $2.29$; $2.209$
2. 14
   Greatest to least: $3.52$; $3.252$; $3.2$; $3.25$

L.8Round each number.

1. 15
   Round $30.76$ to the nearest whole number.

L.8L.9L.10L.11Round each number. (continued)

1. 16
   Round $41.431$ to the nearest whole number.
2. 17
   Round $18.27$ to the nearest tenth.
3. 18
   Round $27.283$ to the nearest tenth.
4. 19
   Round $11.069$ to the nearest hundredth.
5. 20
   Round $3.358$ to the nearest hundredth.
6. 21
   Round $29.608$ to the nearest tenth.
7. 22
   Round $44.524$ to the nearest tenth.

L.1Value of a Decimal Digit

1. 10.01
2. 20.04

L.2Relationships Between Decimal Place Values

1. 310
2. 4100

L.3Read & Write Decimals

1. 573.44
2. 682.941

L.4Decimals in Expanded Form

1. 7$70+6+0.4+0.02+0.001$
2. 8$50+1+0.9+0.05+0.009$

L.5L.6Write >, <, or = in each circle.

1. 9>
2. 10>
3. 11<
4. 12<

L.7Order Decimals

1. 13$2.9$ > $2.29$ > $2.209$ > $2.2$
2. 14$3.52$ > $3.252$ > $3.25$ > $3.2$

L.8L.9Round each number.

1. 1531
2. 1641
3. 1718.3

L.9L.10L.11Round each number. (continued)

1. 1827.3
2. 1911.07
3. 203.36
4. 2129.6
5. 2244.5