Order of Operations

Q.

$3+3x3-3+3=?$

What is the right answer and how?

1. $18$

2. $12$

3. $03$

4. $06$

Q.

How do you multiply $3x3$matrix by a $3x1$matrix $?$

Q.

Use the sign of $>,<or=$ in the box to make the statement true: $(-8)+(-4)[](-8)-(-4)$

Q.

Use the sign of $>,<or=$ in the box to make the statements true: $(-3)+7-\left(19\right)[]15-8+(-9)$.

Q. Use the BODMAS rule to simplify :
$(2\times 4÷2+5\times 3)÷19$

1. 2
2. 0
3. 3
4. 1

Q.

Find the sum of:

$–50,–200$ and $300$

Q.

What number when multiplied by itself is $23$ greater than the preceding number when it is multiplied by itself?

Q.

There are three men and seven women taking a dance class. Number of different ways in which each man is paired with a woman partner, and the four remaining women are paired into two pairs each of two is

1. $105$

2. $315$

3. $630$

4. $450$

Q. If, 1111=5
2222=24
3333=93
4444=272
5555=?

Q. How is simplification of integers done ?

Q.

Question 4(b)

Find using distributive property:

$5437\times 1001$

Q.

A school purchases some furniture and gets the following bill. Answer the following:
(i) What is the name of the store?
(ii) What is the serial number of the bill?
(iii) What is the cost of one black board?
(iv) How many sets of benches and desks does the school buy?
(v) Verify whether the total bill amount is correct.

Q.

8 $÷$ 8 + 8 $\times$ 8 - 8

1. 57

2. 45

3. -57

4. 75

Q.

Find the product of $1\times 2\times 3\times 4$

Q.

The sum of three consecutive numbers is $159$. Find the numbers

Q.

What number should be added to each of these numbers $12,22,42$ and $72$ so that the resulting numbers may be in proportion?

Q.

Question 50.

Fill in the blanks using >, < or =.

(-11) + (-15) ____ 11 + 15

Q.

Subtract $(-5)$ from $5$? [1 Mark]

Q. Below figure is the annual sales and profits (in Lakhs) of a company, which they keep on analysis for every

three months.

a) Find the total profit over a year.

b) Find the difference of sales in the first quarter and third quarter.

c) In which quarter, the company gets the maximum profit?

d) What is the overall sale in the year.

[4 MARKS]

Q.

Find the prime factorisation of $3960.$

Q. Use the sign of $>$, $<$ or $=$ in the box to make the statements true.
$39+(-24)-\left(15\right)$ $36+(-52)-(-36)$.

Q.

A school has 8 periods in a day such that each period is of $35minutes$. If the number of periods is reduced to 7, then how long would each period be?

Q.

Indicate the following by using integer: A loss of Rs.100.

Q.

Use the BODMAS rule and simplify $8\times 11+5\times 6-75$

Q.

In the given question, what will be the next number $83:9::146:$______

Q. Use the sign of $>$, $<$ or $=$ in the box to make the statements true.
$23-41+11$ $23-41-11$

Q.

Write the opposite of the each of the following statements? [3 MARKS]

(i) Earning of Rs 1000

(ii) Gaining a weight of 5 kg

(iii) A deposit of Rs 500 in the bank

Q. Use the sign of $>$, $<$ or $=$ in the box to make the statements true.
$-231+79+51$ $-399+159+81$.

Q.

Question 132

Fill in the blank to make the statement true.

24 x 35 = 24 x 18 + 24 x .........

Q.

What must be subtracted from $-329$to get $-279?$