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How many 4-digit numbers are there in which the first and last digits are the same?
There are 900 of them.
What is the different numbers that have the same absolute value called?
In Real numbers, each is the additive inverse of the other.
Why are numbers expressed using exponents called powers?
Because exponent is the same as power.
What are two numbers that are the same distance from zero on a number line called?
Two numbers that are the same distance from zero on a number line are called "opposites." For example, +5 and -5 are opposites, as they are equidistant from zero but lie on opposite sides of it. They have the same absolute value but different signs.
What are two babies born at the same time called?
They are called twins.
What is it called for a number to have the same last numbers and the same middle numbers?
If you mean can be read the same back to front as front to back such as 12321 or 75257 its a palindrome.
What are numbers called that have the same value?
Equivalent numbers.
What are numbers that are the same frontwards and backwards called?
Palindromes
What are two numbers that are the same distance from zero but are on different sides called?
Opposite numbers.
What are atoms called when they have the same element in different numbers of neutrons?
They are called isotopes.
Related facts that use the same numbers are called a?
Related facts that use the same numbers are called a fact family. A fact family includes both addition and subtraction facts using the same set of numbers.
What are the different numbers of neutrons called when two atoms have the same number of protons?
Two atoms with the same number of protons but different numbers of neutrons are called "isotopes".
What is it called when they have same atomic number but different mass?
They are called isotopes of the same element
How many 4-digit numbers are there in which the first and last digits are the same?
There are 900 of them.
How many three digit numbers exist in which the last digit is the same as the last digit of that number squared?
300
What atoms containing the same numbers of protons and different numbers of neutrons are?
These atoms are called isotopes.
What are five babies born at same time called?
Five babies born at the same time are called 'quintuplets'. They are also called 'rare'.
