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

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

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

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

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

Describe in words the last innum of the whole number 34,365,157,901.

Three hundred and sixty five million

Thirty four billion

One hundred and fifty seven thousand

Nine hundred and one

None of the 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 third innum of the whole number 6,789,784,253,210.

Seven hundred and eighty nine

Two hundred and fifty three

Two hundred and ten

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

Which is the whole number 75,192?

Seventy five million, one hundred and ninety two

Seventy five thousand

Seventy five thousand, one hundred and ninety two

Seventy five billion, one hundred and ninety two

None of the choices

1,237 expressed in words is

Twelve thousand and thirty seven

One hundred and twenty thousand, and thirty seven

Twelve thousand, three hundred and seven

One million, two hundred thousand and thirty seven

One thousand, two hundred and thirty seven