# What state produced the largest coal?

Skills: Place value

Related environmental issues: Energy

The table below shows the amount of coal mined in the 8 largest coal producing states in 2018.

1. Which state has 9 ten thousand?

2. What is the place value of 3 in the number of Wyoming?

3. How many states have 9 thousands?

4. What is the value of 3 in the number of Indiana?

5. Which state has 61 tens?

6. Which state has 40 hundreds?

7. Which states have the same number in tens place and hundreds place?

1.West Virginia
2.Hundred thousands place
3.4
4.30,000
5.Montana

6.Indiana

7.Pennsylvania

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# Which county had more electric cars – the U.S. or Japan?

Skills:DECIMALS (PLACE VALUE & ROUNDING)

Related environmental issues: Others

The number of electric cars on the road has been significantly increasing.  There were over 5 million electric cars running in the world in 2018. The table below shows the number of electric cars sold in four countries in 2018.

1. What place is the 1 in the number of electric cars sold in Canada?
2. Round the number of electric cars sold in the United Kingdom to the nearest tenth.
3. Round the number of electric cars sold in Japan to the nearest whole number.
4. What digit is in the hundredth place in the number of electric cars sold in the United States?
5. The expanded form of the number of electric cars sold in China* is 1,000 + 70 + 8 + 0.5 + 0.03. Write the number in the standard form.

International Energy Agency, 2019. Global EV Outlook 2019 (Figure 1).

1. The tenth place
2. 50.4
3. 50
4. 2
5. 1,078.53 (*thousand)

### Factful Environmental Math Problems (2020)

Just published and now available from Amazon  (paperback)