Battle of the Brain Mathematics for Grade 7, K to 12

BATTLE of the BRAIN

If TERA is to x 1 000 000 000 000, what is

NANO?a. x 1/1 000 000b. x 1/1 000 000 000c. x 1 / 1 000 000 000 000

d. x 1 /1 000

Two friends, Jester and Edel, run in marathons. Jester finished a 25 – km marathon in San Teodoro while Edel

finished a 20 – mile marathon in Puerto Galera. Who between the two

ran a longer distance?a. Jester, because he ran 25 km while

Edel only ran 20 milesb. Edel, because 20 miles is bigger

than 25 kmc. both of them ran equal distance d. it cannot be determined for they

ran on different unit of distances

One number is 3 less than another number. If their sum is 49 ,what is

the first number?a. 23

b. 26 c. 20 d. 29

In 6x -5 = 2x + 3, what is the value of

x?a. 2 b. 3 c. 4 d. 5

Which statement is FALSE?

a. 6 – 4 < 3 b. 4 (2) + 2 = 10

c. 9 – 5 ≥ 4 d. 10 – 4 ˂ 3

Fifteen less than four times a number is less than the sum of a number and five. Which

mathematical phrase is correct for this sentence?

a. 15- 4x < x + 5 b. 4x – 15 < x + 5

c. 15- 4x > x + 5 d. 4x – 15 < 5- x

Which is correct for the equation x

+ 4= 10?a.The sum of a number and four is ten

b.four of a number is equal to ten

c.Four less than a number equals ten

d.a number decreased by four is ten

Which of the following is equivalent to (x2 –

3x + 9) (x + 3)?

a. x3 – 12 b. x3 + 12 c. x3 + 27 d. x3 – 27

Which expression when multiply to (3x + 1) will give the product of (9x2

– 1)?a. 3x + 1 b. 3x – 1 c. 6x + 1 d. 6x – 1

(a + b) (a – b) = a2 – b2 is general formula for

the product of what kind of expression?

a.Sum and difference of two terms

b.cube of a binomialc.Square of a binomial d.binomial and a trinomial

What is the general formula for the product of the monomials (a +

b) (c + d)?a. ab+ cd + bc + bd

b. ac + ad + bc + bdc. cd + ab + bc + bd

d. ad + ac + bc + cd

If I spent (x3 + 5x2 – 2x – 24) pesos for (x2 + x – 6) pencils, how much does

each pencil cost?a. x + 4 b. x – 4 c. x2 + 4 d. x2 - 4

The length of the rectangle is x cm and its area (x2-x) cm2 , what is the measure

of its width?a. x – 1 b. x – 2 c. x2 d. x2 – 1

What will be the sign of the quotient if we divide positive

monomial by negative monomial?

a. Positive b. negative c. undefined d. always positive

Which of the following expression will make (x +

6)____= x2 + 12x +36 true?

a. x + 6 b. x + 7 c. x + 4 d. x – 6

In (x + 3) (x+ 5), what is the product of

the last term?a. x2 b. 3x c. 5x d. 15

What is the other name for F.O.I.L.

method?a. Happy Method

b. Saddy Method c. Smile Method

d. Rule Method

What property is commonly used in

multiplying monomial by polynomial?

a. Symmetric b. distributive c. transitive d. additive

Which expression is correct for the sum of

3x2- 11x+ 12 and 18x2 + 20 -100?

a. 15x2 + 31x-88 b. 21x2 +9x -88 c. 15x2+ 9x -88 d. 21x2+ 31x -88

Complete this statement: To subtract polynomials, change

the sign of the _____then proceeds to addition rule.

a. minuend b. divisor c. difference d. subtrahend

What expression should be added to

3x to get 10x?a. 7x b. – 3x c. – 7x d. 3x

Which of the following is

correct?a. 42 =4 x 4=16b. 25 =2 x 5= 10c. 24 =2 x 2 x 2 x 2= 8

d. 30 = 0

What operation is involved in the exponent of ?

a. addition b. division c. multiplication d. subtraction

What is a in the expression ah ?

a. exponent b. base c. numerical coefficient

d. literal coefficient

Which of the following does NOT

belong to the group?

a. polynomial b. monomial c. multinomial d. binomial

What expression is not

polynomial?a. 3x2 b. 7 c. 13x – 9 d. 3x-1

What statement is NOT true about algebraic

expressions which are not polynomial?

a. the exponent of the variable is not a whole number

b. the variable is in the numerator

c. the variable is inside the radical sign

d. the variable is in the denominator

It is a kind of algebraic expression where each term is a constant, variable or a product of

constant and variable in which the variable has a whole number

exponent.a. polynomial b. trinomial c. equation d. expression

What statement is correct about 3 –

x?a. three is less than a number

b. a number less than three

c. a number less three

d. three more than a number

Twice a number diminished by 6

a. 2x + 6 b. 2(x – 6) c. 2x – 6 d. 2x/6

Which of the following is a

term?a. 23m + 5 b. (2) (6x) c. x – y +2 d. ½ x – y

What is the commonly used unit for temperature in the metric system?

a. Celsius b. Fahrenheit c. Kelvin d. Degree

If 12-hr notation is the standard time during

current times, what do we call to a 24-hr notation?

a. enforcer time b. mentor time c. astronomical time

d. medical time

Which of these units is NOT commonly

used English units for fluid?

a. cup b. pint c. quart d. gallon

Good Luck and God Bless!!!Ilabyah…..