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How many expressions are there for the number 7?
As many as you want.
What operations are involved in the expressions 2x plus 7 and 3x plus 6?
Multiplication and addition.
How can a subtraction problem be turned into a addition problem?
When you have a negative number after the subtraction sign it turns in to addition. For example +7 - (-7) = 14 and (-7) - 7 = (-14)
Is 3 plus 7 a numerical expression?
Yes. Anything which you can evaluate (calculate) to get a number is a numerical expression. Thus, all of the following are numerical expressions:5x (if the variable stands for a number)1 + 25 / 3square root of (5 / 3)In general:* Any number* Any variable that stands for a number* An addition, subtraction, multiplication, division, or power that involves numerical expressions is again a numerical expression (as long as the operation makes sense - for example, you can't divide by zero)* Many mathematical functions, with a numerical expression as a parameter - for example, sin(5 + 3), ln(10), etc.
How many addition signs should be put between the digits of the number 987654321 and where should they be put to get a total of 99?
9+8+7+65+4+3+2+1 = 99. So 7 addition signs need to go in 987654321 to get a total of 99.
How many expressions are there for the number 7?
As many as you want.
What operations are involved in the expressions 2x plus 7 and 3x plus 6?
Multiplication and addition.
How can a subtraction problem be turned into a addition problem?
When you have a negative number after the subtraction sign it turns in to addition. For example +7 - (-7) = 14 and (-7) - 7 = (-14)
Which of the following expressions represents the quotient of nine times a number and seven?
9(n +7)
What is the property shown in -7 plus 7 equals 0?
Additive inverse of a number a is that number which on addition with a gives 0.7 is additive inverse of -7.The property shown is additive inverse property because the addition yields 0.
What is a number sentence that shows commutative property of addition?
9+7
Is 3 plus 7 a numerical expression?
Yes. Anything which you can evaluate (calculate) to get a number is a numerical expression. Thus, all of the following are numerical expressions:5x (if the variable stands for a number)1 + 25 / 3square root of (5 / 3)In general:* Any number* Any variable that stands for a number* An addition, subtraction, multiplication, division, or power that involves numerical expressions is again a numerical expression (as long as the operation makes sense - for example, you can't divide by zero)* Many mathematical functions, with a numerical expression as a parameter - for example, sin(5 + 3), ln(10), etc.
Write an addition expression using the number 7 only it should be the same as 11x7?
70 + 7
What is a number minus 7?
Placing a question mark at the end of a list of expressions or numbers does not make it a sensible question. Try to use a whole phrase (sentence) to describe what it is that you want answered.
Create addition number sentences that equal 8?
1+7= 2+6=
How many addition signs should be put between the digits of the number 987654321 and where should they be put to get a total of 99?
9+8+7+65+4+3+2+1 = 99. So 7 addition signs need to go in 987654321 to get a total of 99.
How do you change a subtraction problem into an addition?
make it a '+ negative number'. Example: 6 - 7 = -1 6 + (-7) = -1
