Three number numbers are from 100 come 999. We know that there space nine one-digit numbers, i.e., 1, 2, 3, 4, 5, 6, 7, 8 and 9. There room 90 two digit number i.e., from 10 to 99. One number numbers space made through the digits 1, 2, 3, 4, 5, 6, 7, 8 and also 9. In making two digit numbers, zero (0) is also utilized along with digits 1 to 9. In 2 digit numbers one digit represents variety of ones and also the other represent the number of tens.

The number representing persons is inserted at one’s place while the digit representing ten’s is placed at ten’s place. As in 52, 5 is at ten’s place having its value 5 × 10 = 50 and also 2 is in ~ one’s place having actually it’s worth 2 × 1 = 2.

Similarly, in 35, 5 is in ~ one’s place having it’s worth 5 × 1 = 5 and also 3 is in ~ ten’s place having actually its value 3 × 10 = 30 i.e., 35 = 30 + 5.

In the first ten 2 digits numbers the number 0, 1, 2, …. Are inserted after 1 i.e., 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19. Climate comes 2 in ~ ten’s place. All the digits are put after 2 i.e., 21, 22, 23, 24, 25, 26, 27, 28 and 29. 




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The complying with table shows the formation of two digits numbers:


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Two number Numbers

After 99, the counting number is 100. This is a three digit number. As soon as one is added to 99, the sum is 100. In 100, there room 10 10s or 100 ones, i.e., (100 = 10 × 10 = 100 × 1). With the assist of people we gain tens and with the assist of ones and tens us make the number of two digits, i.e., native 10 to 99. We recognize that   One ten = ten (10)   Two 10s = twenty (20)   Three tens = thirty (30)   4 tens = forty (40)   five tens = fifty (50)   six tens = sixty (60)   7 tens = seventy (70)   Eight 10s = eighty (80)   Nine tens = ninety (90)   Ten tens = one hundred (100)

Similarly,   1 × hundred = hundred (100)   2 × hundred = 2 hundred (200)   3 × hundreds = three hundred (300)   4 × hundred = 4 hundred (400)   5 × hundred = five hundred (500)   6 × hundred = six hundred (600)   7 × hundred = seven hundred (700)   8 × hundred = eight hundred (800)   9 × hundred = ripe hundred (900)   10 × hundreds = ten hundred (1000) We check out that the 3 digit numbers favor 100, 200, 300, 400, 500, 600, 700, 800 and also 900 are represented by the numerals having a digit and also two zeros. This numbers space the multiples of 2 numbers i.e., 100 × 1, 110 × 2, 100 × 3, …….., etc. However the 3 digit numbers are formed by place the one and two number numbers, i.e., native 1 come 99 after the fundamental digits 1, 2, 3, ….., 9 respectively together 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, ……., 117, 118, 119, ………, 125, 126, 127, …….., 134, 135, 136, ……….., 299, 300, 301, ….…., 400, ….…, 427, ………….etc. In 3 digit numbers the number are put at one’s, ten’s and also hundred’s place. In ~ the too much right of the number there is one’s place, climate to the left of it over there is ten’s place and also to the left the it over there is hundred’s place. The digits have their ar value in a given number. Because that example, in 235 the place value the 5 is 5, of 3 is 30 and also 2 is 200. We compose this in words as 2 hundred thirty five. The 3 digits numbers may easily be defined with the aid of mathematics apparatus referred to as ABACUS.

What is spike abacus?

Spike abacus has numerous iron spikes top top a wooden base. The spikes may have globules having wholes. The spikes are named as ones, tens, hundreds, thousands etc. Respectively from excessive right to the left. The number of globules in the involved spikes expresses the location value that the number of the number.

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In the given snapshot of the abacus, there room three spikes. In the an initial spike express ones, there room 2 globules, beside it there are 3 globules and also in the third spike indigenous the ones’ spike there space 4 globules.

2 globules the the one’s mark, spike to express 2 × 1 = 2, 3 globules the the tens spike to express 3 × 10 = 30 when 4 globule that the third spike i.e., hundreds spike express 4 × 100 = 400. Thus, the globules put at various places represent the number 400 + 30 + 2 = 432. Thus, with the aid of ‘abacus’ we have the right to understand the ide of 3 digit numbers.

2nd Grade math Practice From 3 Digit numbers to house PAGE




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