Evaluating numbers is vital to know which quantity is bigger and which quantity is smaller.
We all know that, a 2-digit quantity is bigger than a 1-digit quantity.
A: Comparability of 2-Digit Numbers:
The best way to examine two numbers to seek out out which is the larger quantity.
For instance:
1. Evaluate the numbers 34 and 43.
Technique 1: Utilizing the quantity line
The quantity that comes in a while the quantity line is the larger quantity. First, examine the tens. Then examine those.
We all know from the quantity line that 43 comes after 34, so 43 > 34.
Technique 2: Utilizing place worth
The quantity with the higher digit within the greater place is the larger quantity. First, examine the tens. Then examine those.
We begin with the tens place.
Since 4 > 3 within the tens place, 43 > 34.
2. Evaluate the numbers 7 and 13.
The quantity with extra variety of digits is at all times higher and
the quantity with much less variety of digits is at all times smaller.
7 is a 1-digit quantity and 13 is a 2-digit quantity. Due to this fact,
7 < 13 or 13 > 7.
Observe:
What will we do if each the digits are identical within the tens place?
We examine the digits within the ones place.
3. Evaluate the numbers 35 and 38.
Utilizing place worth
Step I: First examine the tens place.
The tens place has the digit 3 in each the numbers.
Step II: Then examine those place
Those place has 5 within the quantity 35.
Those place has 8 within the quantity 38.
Since 5 < 8 within the ones place, so 35 < 38 or 38 > 35.
B. Comparability of 3-Digit Numbers:
In the identical method a 3-digit quantity is at all times higher than a 2-digit quantity.
The quantity with extra digits is at all times higher than the quantity with much less digits.
Solved examples for evaluating numbers:
1. Allow us to examine two numbers 103 and 99.
Resolution:
103 has 3-digits.
99 has 2-digits.
So, 103 is bigger than 99.
2. Evaluate the quantity 125 and 87 and discover which quantity is the higher quantity.
Resolution:
1 hundred 2 tens 5 ones = 125 = 12 tens and 5 ones
= 8 tens and 45 ones
8 tens 7 ones = 87 = 8 tens and seven ones
125 = 8 tens + 45 ones
87 = 8 tens + 7 tens
It’s clear 45 ones > 7 ones
or, 125 ones > 87 ones
or, 125 > 87
Due to this fact, the quantity which has extra digits than the opposite is bigger
If the variety of digits are equal, we first examine the digits in tons of place. The quantity with higher digit within the tons of place is bigger.
3. Allow us to examine 369 and 216.
Resolution:
Evaluating the digits within the tons of place we discover that 3 is bigger than 2.
So, 369 is bigger than 216 and 369 > 216.
4. Allow us to examine 468 and 438.
Resolution:
Evaluating the digits within the tons of place we discover that each numbers have identical digit.
Subsequent, we examine the digits in tens place. We discover that 6 > 3.
So, 468 > 438
5. Allow us to examine 822 and 829.
Resolution:
Evaluating the digits within the tons of and tens place we discover that they’re identical in each the numbers.
So, we examine the digits in ones place. We discover that 9 > 2.
So, 829 > 822.
6. Evaluate 238
and 148.
Resolution:
2 hundred 3 tens 8 ones
= 238 = 200 + 30 + 8
1 hundred 4 tens 8 ones
= 148 = 100 + 40 + 8
238 = 200 + 30 + 8 = 238 ones
148 = 100 + 40 + 8 =148 ones
It’s clear 238 ones > 148 ones.
Therefore, 238 > 148 and 148 < 238
Each 238 and 148 have the identical variety of digits however the
digit at tons of place in 238 has greater place worth (200) than the digit at
tons of place worth in 148 i.e., (100) or 2 > 1.
Due to this fact, 238 > 148
7. Evaluate the
following numbers:
(i) 256 and 234
Resolution:
2 tons of + 5 tens + 6 ones = 200 + 50 + 6 = 256 ones
2 tons of +3 tens + 4 ones =200 + 30 + 4 = 234 ones
256 ones > 234 ones
or, 256 > 234
Each the quantity have equal variety of tons of, however 256 has
extra tens 234
Due to this fact, 256 > 234
(ii) 182 and 186
Resolution:
1 hundred + 8 tens + 2 ones = 100 + 80 + 2 = 182 ones
1 hundred + 8 tens + 6 ones = 100 + 80 + 6 = 186 ones
or, 182 < 186
Each the numbers have equal variety of tons of and equal
variety of tens. However 182 has much less ones than 186.
Due to this fact, 182 < 186
Notes for evaluating numbers:
(i) The quantity having extra hundred is bigger
(ii) If the quantity has equal tons of as the opposite quantity,
however higher tens than the opposite, it’s higher.
(iii) If one quantity has equal tons of and equal tens however
extra ones than the opposite, it’s higher.
Questions and Solutions on Evaluating Numbers:
1. Evaluate the next pairs of numbers and insert > or < signal.
(i) 410 _____ 428
(ii) 362 _____ 381
(iii) 729 _____ 354
(iv) 967 _____ 816
(v) 468 _____ 567
(vi) 637 _____ 691
(vii) 815 _____ 729
(viii) 917 _____ 845
(ix) 752 _____ 672
(x) 711 _____ 237
(xi) 780 _____ 163
(xii) 896 _____ 754
Reply:
1. (i) <
(ii) <
(iii) >
(iv) >
(v) <
(vi) <
(vii) >
(viii) >
(ix) >
(x) >
(xi) >
(xii) >
2. Encircle the smallest quantity within the group.
(i) 621 852 956 347 446 896
(ii) 217 927 341 789 429 137
(iii) 329 611 328 108 925 423
(iv) 756 157 129 482 128 418
(v) 597 451 516 423 319 616
Reply:
2.(i) 347
(ii) 137
(iii) 108
(iv) 128
(v) 319
3. Color the field which has the best quantity within the set.
Reply:
3. (i) 456
(ii) 847
(iii) 231
(iv) 481
(v) 760
(vi) 918
(vii) 217
(viii) 359
(ix) 877
4. Color the field which has the smallest quantity within the set.
Reply:
4. (i) 437
(ii) 310
(iii) 202
(iv) 237
(v) 716
(vi) 522
(vii) 862
(viii) 221
(ix) 405
5. Evaluate 65 and 55.
Which is bigger?
Reply:
65 is bigger than 55
6. Evaluate 74 and 77.
Which is bigger?
Reply:
77 is bigger than 74
7. In a prepare, there are 144 passengers travelling in an air
conditioned compartment and 360 passengers are travelling in a non-air
conditioned compartment. Through which compartment extra passengers are travelling?
Insert the < or > signal to reply.
Reply:
7. 360 > 144
8. Nitheeya buys 100 stamps lower than Joe. If Joe has purchased
700 stamps. What number of stamps had been purchased by Nitheeya.
Reply:
8. 600
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