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Engineering Mathematics Through Applications

Kuldeep Singh

Chapter 0

Arithmetic for Engineers - all with Video Answers

Educators

Section 1

Whole numbers

01:14

Problem 1

Fill in the most appropriate symbol $<, \leq$, $>$ or $\geq$ in place of $\square$ for the following:
a $17 \square-17$
b $-17 \square 17$
c $-2 \square-1$
d $-5 \square-5$
e $-2 \square 0$

AG
Ankit Gupta
Numerade Educator
01:26

Problem 2

Complete the correct symbol, $+,-, \div$ $\times$, in place of $\square$ for the following:
a $3 \square 2=5$,
b $3 \square-2=5$
c $9 \square 3=3$
d $-7 \square(-11)=77$
e $-6 \square(-5)=-1$

Subhakanta Sahoo
Subhakanta Sahoo
Numerade Educator
02:10

Problem 3

Evaluate the following:
a $7-12$
b $-3+1$
c $-3-(-1)$ ]
d $-11+(-11)$
e $-11-(-11)$

Ricajoy Montero
Ricajoy Montero
Numerade Educator
00:25

Problem 4

Calculate
a $(-6) \div(-2)$
b $(-6) \times 2$
c $(-6) \times(-2)$
d $(-6) \div 2$
e $(-6) \div(-2)$
$\mathbf{g}(-1) \times(-2) \times(-8)$
f $6 \div(-2)$

Cory Kuzinski
Cory Kuzinski
Numerade Educator
07:37

Problem 5

By using your calculator, or otherwise, compute the following:
a $(-343) \times 343$
b $(-343) \times(-343)$
c $(-729) \div 81$
d $\frac{(-729)}{81}$
e $(-666)-(-1945)$
f $(-2) \times(-5) \times(-7) \times(-10)$

Dr. Satish Ingale
Dr. Satish Ingale
Numerade Educator