Question28:
The goal of the following questions is to train your speed of calculation.
(Hint: Those are easy questions, but you have to be patient to get correct answers.)
74651-79246-64582-12131
Answer28:
Just train your speed of calculation.
= -81308
Qu

Question22:
The goal of the following questions is to train your speed of calculation.
(Hint: Those are easy questions, but you have to be patient to get correct answers.)
99*203-99*3+100*33
Answer22:
=99*(203-3)+100*33
=99*200+3300
=19800+3300
=23100
Que

Question19:
The goal of the following questions is to train your speed of calculation.
(Hint: Those are easy questions , but you have to be patient to get correct answers.)
20*77+20*23
Answer19:
=20*(77+23)
=20*100
=2000
Question20:
The goal of the follow

Question01:
If,
X+Y=7
X-Y=2
Find the X and Y.
Answer01:
We can find (X+Y)+(X-Y)=7+2=9
Then, 2X=9, so X=4.5 and Y=2.5
Question02:
If,
X+Y=15
X-Y=11
Find the X and Y.
Answer02:
We can find (X+Y)+(X-Y)=15+11=26
Then, 2X=26, so X=13 and Y=2
Question03:
If,
3X

Question04:
If,
3X+Y=18
2X-Y=12
Find the X and Y.
Answer04:
We can find (3X+Y)+(2X-Y)=18+12=30
Then, 5X=30, so X=6 and Y=0
Question05:
If,
X+Y=18
X-2Y=12
Find the X and Y.
Answer05:
We can find (X+Y)-(X-2Y)=18-12=6
Then, 3Y=6, so Y=2 and X=16
Question06:

Question10:
If,
333X+4Y=270
167X-4Y= 230
Find the X and Y.
Answer10:
We can find (333X+4Y)+(167X-4Y)=270+230=500
Then, 500X= 500, so X= 1 and Y= -15.75
Question11:
If,
999X-Y=500
-X+999Y=498
Find the X and Y.
Answer11:
We can find (999X-Y)+(-X+999Y)=500+4

Question07:
If,
3X+Y=7
X-2Y=0
Find the X and Y.
Answer07:
We can find 2(3X+Y)+(X-2Y)=14+0=14
Then, 7X= 14, so X= 2 and Y=1
Question08:
If,
3X+Y=7
X-2Y=14
Find the X and Y.
Answer08:
We can find 2(3X+Y)+(X-2Y)=14+14=28
Then, 7X= 28, so X= 4 and Y= -5
Quest

Question13:
Which answers can be used when we have to solve simultaneous equations?
(Hint: JUST OFFER A ANSWER EXCEPT eliminate X to count Y )
Answer13:
We can eliminate Y to count X.
Question14:
Which answers can be used when we have to solve simultaneou

Question16:
The goal of the following questions is to train your speed of calculation.
(Hint: Those are easy questions , but you have to be patient to get correct answers.)
1+98+99+2
Answer16:
=(1+99)+(2+98)
=100+100
=200
Question17:
The goal of the follo

Question25:
The goal of the following questions is to train your speed of calculation.
(Hint: Those are easy questions, but you have to be patient to get correct answers.)
74651+23446-64582+34464
Answer25:
Just train your speed of calculation.
=197143
Que