1.
Write 120,000,000 in scientific notation.
A.
1.2×10
8
B.
0.12×10
9
C.
12×10
7
D.
1.2×10
9
Hint
2.
Which symbol makes the following statement true?
3.25 × 10
3
______ 325
A.
>
B.
<
C.
D.
=
Hint
3.
Which symbol makes the following statement true?
1.55 × 10
4
______ 15,000
A.
B.
<
C.
=
D.
>
Hint
4.
Michigan’s population is almost 10,000,000 people. Texas’ population is twice that of Michigan. About how many people live in Texas?
A.
2.0 × 10
7
B.
2.0 × 10
9
C.
2.0 × 10
6
D.
2.0 × 10
8
Hint
5.
The Mojave Desert in southern California is 15,000 square miles. The Sahara Desert in northern Africa is about 233 times larger than the Mojave Desert. How big is the Sahara Desert?
A.
3.5 × 10
5
sq mi
B.
3.5 × 10
3
sq mi
C.
3.5 × 10
6
sq mi
D.
3.5 × 10
4
sq mi
Hint