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

800 expressed in words is

Eight thousand

Eighty

Eighteen

Eight hundred

Eight

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

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

333,000 expressed in words is

Three hundred and thirty three million

Three hundred and thirty three thousand

Three hundred and thirty three

Three million and thirty three

None of the given choices

How would you write the whole number 56 017 982 105 in words?

Fifty six comma seventeen space nine hundred and eighty two comma one hundred and five

Five six zero one seven nine eight two one zero five

Five hundred and sixty billion, one hundred and seventy nine million , eight hundred and twenty one thousand, and five

Fifty six billion, seventeen million, nine hundred and eighty two thousand, one hundred and five

None of the given choices

1,331 expressed in words is

One thousand, three hundred and thirty one

One million, three thousand, three hundred and one

Thirteen thousand and thirty one

One trillion, three billion, three million, one thousand

None of the above

Describe in words the last innum of the whole number 120,305?

One hundred and twenty

One hundred and twenty thousand

Three hundred and five

Five

None of the choices

5,612 expressed in words is

Fifty six thousand and twelve

Five thousand, six hundred and twelve

Five billion, six million, one thousand and two

Five million, six hundred and one thousand, and two

None of the given choices

600,000 expressed in words is

Six hundred

Sixty

Six hundred thousand

Six

Sixty thousand

13 expressed in words is

Thirteen

Thirty

Three

Thirty three

None of the given choices