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

Describe in words the third innum of the whole number 25,301,600.

Twenty five million

Three hundred and one

Six hundred

Three

None of the choices

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

Describe in words the first innum of the whole number 3,397,300,300.

Three million

Three hundred

Three hundred and ninety seven

Three

None of the choices

How would you write the whole number 7 000 000 013 in words?

Seven billion and thirteen

Seven million and thirteen

Seven trillion and thirteen

Seven hundred and thirteen

Seven thousand and thirteen

What is the second innum in the whole number 4,562,157,963,256?

Five hundred and sixty two

One hundred and fifty seven

Nine hundred and sixty three

Two hundred and fifty six

None of the choices

800 expressed in words is

Eight thousand

Eighty

Eighteen

Eight hundred

Eight

The whole number 1 689 is

One hundred thousand, six hundred and eighty nine

One thousand, six hundred and eighty nine

One million, six hundred and eighty nine thousand

One billion, six hundred and eighty nine million

One trillion, six hundred and eighty nine billion

Describe in words the first innum of the whole number 873 102 497 896 325.

Eight hundred and seventy three

One hundred and two

Four hundred and ninety seven

Eight hundred and ninety six

None of the choices

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