4
Read the problem. Write each fact as a variable expression. Write each fact as a sentence.
30
how many other fact families with dividends under 100 contain exactly three different digits? Name one multiplication fact in each of these families
this is when there are the same digit numbers in the sentence
25
6
Fact families are 3 numbers that are related, just as the people in a family are related. They make a set of related math facts.
write three numbers that makes a fact family
Fact families are 3 numbers that are in the form of 2 addition and subtration problems or 2 multiplication and division problems.
all the fact families of 80 is 23+4
They are equivalent to the fact that the sum of each numbers equals -1
All counting numbers. In fact the second number in each row forms the sequence 1,2,3,4,...