First Law of Indices

- If there is no visible sign before a number, the invisible sign is PLUS e.g. 8 means +8
- If two numbers have the same signs in front of them, the answer has that sign and you ADD the two numbers e.g. -1-2=-3 and 4+3=7
- If two numbers have opposite signs in front of them, the answer has the sign of the larger number and you SUBTRACT the smaller number from the larger number e.g. 4-7=-3 and 8-7= 1
- If the two numbers are equal in value but have different signs in front of them, then the result is zero e.g. -9+9= 0 and 15-15=0

Related to Sample Lesson

Each question has five choices. Click one of the choices to select your answer. You may change an answer at any time by simply clicking another choice. Click FINISH when you have completed your answers.

First Law of Indices

1,001,100 expressed in words is

One hundred and eleven

One million, one thousand, one hundred

One hundred million and one

One trillion, one million

None of the above

20 expressed in words is

Two

Two thousand

Two hundred

Twelve

Twenty

65,937 expressed in words is

Sixty five million, nine hundred and thirty seven

Six million, five hundred thousand, nine hundred and thirty seven

Six hundred and fifty nine thousand, and thirty seven

Sixty five thousand, nine hundred and thirty seven

None of the given choices

2,002 expressed in words is

Twenty two

Two hundred and two

Two thousand and two

Two thousand, two hundred

None of the given choices

25,000,000,001 expressed in words is

Two hundred and fifty one

Twenty five trillion and one

Twenty five million and one

Twenty five billion and one

Twenty five thousand and one

Describe in words the last innum of the whole number 86,967,287.

Eighty six million

Nine hundred and sixty seven thousand

Two hundred and eighty seven

Nine hundred and sixty seven

None of the choices

1,000,001 expressed in words is

One million and one

One billion and one

One trillion and one

One thousand and one

One hundred and one

Describe in words the second innum of the whole number 36,214,789,632.

Two hundred and fourteen

Thirty-six

Seven hundred and eighty-nine

Six hundred and thirty-two

None of the choices

Describe in words the first innum of the whole number 6,575,314,679,100.

Six million

Six billion

Six trillion

Six

None of the choices

800 expressed in words is

Eight thousand

Eighty

Eighteen

Eight hundred

Eight