Answer and explanation:
To find : Determine the value of the underlined digit ?
Solution :
According to place value system,
Place Hundred Tens Ones
Value 100 10 1
1) 865 six is underline
The value of underlined digit 6 is
![6* 10=60](https://img.qammunity.org/2020/formulas/mathematics/college/lx78ln9qnbt74pjiwza7z93e7pktdu4653.png)
2) 419 one is underline
The value of underlined digit 1 is
![1* 10=10](https://img.qammunity.org/2020/formulas/mathematics/college/rmbyg51v46emrhjj9l86dr0t110z8cy6c9.png)
3) 702 two underlined
The value of underlined digit 2 is
![2* 1=2](https://img.qammunity.org/2020/formulas/mathematics/college/8mb4ohf4jggtsyge2r48qlfegvpffbewk8.png)
4) 520 two underlined
The value of underlined digit 2 is
![2* 10=20](https://img.qammunity.org/2020/formulas/mathematics/college/f3umxr9iyu6s1692rsnq88zwo3l71e2is8.png)
5) 610 six underlined
The value of underlined digit 6 is
![6* 100=600](https://img.qammunity.org/2020/formulas/mathematics/college/yqqc9uj2r0ibx6070yr1tb1z9wucrlm8na.png)
6) 494 four underlined
The value of underlined digit 4 at ones place is
![4* 1=4](https://img.qammunity.org/2020/formulas/mathematics/college/3f0c7ygy69qlro4znuu2d6s75bcukhorax.png)
The value of underlined digit 4 at hundred place is
![4* 100=400](https://img.qammunity.org/2020/formulas/mathematics/college/wjtet5o6q3r0skg5yuclf7oruvi36os8uu.png)
7) 899 nine underlined
The value of underlined digit 9 at ones place is
![9* 1=9](https://img.qammunity.org/2020/formulas/mathematics/college/474fh7hl6j8hvmz90i1mvyqirm9j1zkdmc.png)
The value of underlined digit 9 at tens place is
![9* 10=90](https://img.qammunity.org/2020/formulas/mathematics/college/94hdxf2qghoioec04pp6yxvgdwhfl1n31t.png)
8) 126 one underlined
The value of underlined digit 1 is
![1* 100=100](https://img.qammunity.org/2020/formulas/mathematics/college/6mh31qtcpetgkaz7pfyisj8aw1dggmouoq.png)
9) 953 nine underline
The value of underlined digit 9 is
![9* 100=900](https://img.qammunity.org/2020/formulas/mathematics/college/2bt3rxu816t0m0ztlzpglaxnc4zgdzley0.png)
10) 458 five underlined
The value of underlined digit 5 is
![5* 10=50](https://img.qammunity.org/2020/formulas/mathematics/college/nw114az3rwpr07699fkgdnu556ug881712.png)
11) 561 five underlined
The value of underlined digit 5 is
![5* 100=500](https://img.qammunity.org/2020/formulas/mathematics/college/ehke0iw5mxtbfiabcf3p8jigm3cmgopw45.png)
12) 776 seven underlined
The value of underlined digit 9 at tens place is
![7* 10=70](https://img.qammunity.org/2020/formulas/mathematics/college/dofklzflivm92pesyvo1o7t5dzymukcvrn.png)
The value of underlined digit 9 at hundred place is
![7* 100=700](https://img.qammunity.org/2020/formulas/mathematics/college/x6ymx2sfe74od73ni4xdeg0lp5xtnl380t.png)
13) 371 seven underline
The value of underlined digit 7 is
![7* 10=70](https://img.qammunity.org/2020/formulas/mathematics/college/dofklzflivm92pesyvo1o7t5dzymukcvrn.png)
14) 549 four underlined
The value of underlined digit 4 is
![4* 10=40](https://img.qammunity.org/2020/formulas/mathematics/college/o5o7ozx0pmgsvq5snqjypjf2jlwrysac1y.png)
15) 804 eight underlined
The value of underlined digit 8 is
![8* 100=800](https://img.qammunity.org/2020/formulas/mathematics/college/2xsmgee164l5uqmxqoj3fp5ohjy7mu91ju.png)
16) 183 eight underlined
The value of underlined digit 8 is
![8* 10=800](https://img.qammunity.org/2020/formulas/mathematics/college/p4s6m5xq4p0kkthkp0j8uhyh5tv7m5gwef.png)