Question

2

2. Match each number with an equivalent expression writ
single digit times a power of ten.
0.000000004
40,000,000,000
40,000,000
0.00004
WA/L
4 x 10-5
000
4 x 10¹0
00
4 × 10-9
010
0
er of ten?
Os bas
4 × 107
00
bris 20
a+s(901);

Answer 1

1st = 4×10 ^-9

2nd= 4×10^1

3rd = 4×10^7

4th = 4×10^-5

Explanation:

for whole numbers you just have to count from the ending till the number indicated beside the x10

for decimals you count from the front starting at the decimal till you cover the whole number