Numbers

In Hebrew, numbers have their own gender. For example, in the expression ''two boys'' (shney yeladim), the number two is different than in ''two girls'' (shtey yeladot).
The number one e7ad or a7at is always placed after the noun it qualifies (one student - talmid e7ad) and the number shnayim or shtayim becomes shney or shtey before the noun it modifies. ( Numbers II )

Masculine: 

Zero (efes) - אֶפֶס

One (e7ad) - אֶחַד

Two (shnayim) - שְׁנַיִם

Three (shlosha) - שְׁלוֹשָׁה

  Four (arba3a) - אַרְבָּעָה

 Five (7amisha) - חֲמִשָׁה

 Six (shisha) - שִׁשָּׁה

Seven (shiv3a) - שִׁבְעַה

Eight (shmona) - שְׁמוֹנָה

 Nine (tish3a) - תִּשְׁעָה

 Ten (3asara) - עֲשָׂרָה

Feminine:

Zero (efes) - אֶפֶס

One (a7at) - אַחַת

Two (shtayim) - שְׁתַּיִם

Three (shalosh) - שָׁלוֹשׁ

Four (arba3) - אַרְבַּע

Five (7amesh) - חָמֵשׁ

Six (shesh) - שֵׁשׁ

Seven (sheva3) - שֶׁבַע

Eight (shmone) - שְׁמוֹנֶה

Nine (tesha3)  - תֵּשַׁע

Ten (3eser) - עֶשֶׂר

In proper Hebrew the feminine form of the number “four” is arba3, but most Israelis say arba3. The same happens to the number “eight”(feminine) : it's shmone, but most Israelis say shmone.

Eleven (a7at 3esre) - אַחַת עֶשְׂרֵי

Twenty (3esrim) - עֶשְׂרִים

 Thirty (shloshim) - שְׁלוֹשִׁים

 Thirty six (shloshim ushtayim) - שְׁלוֹשִׁים וּשְׁתַּיִם

Forty (arba3im) - אַרְבָּעִים

Forty eight (arba3im ushmone) - אַרְבָּעִים וּשְׁמוֹנֶה

Fifty (7amishim) - חֲמִשִּׁים

Fifty six (7amishim ve7amesh) - חֲמִשִּׁים וְחָמֵשׁ

  Sixty (shishim) - שִׁשִּׁים

Seventy (shiv3im) - שִׁבְעִים

Eighty (shmonim) - שְׁמוֹנִים

Ninety (tish3im) - תִּשְׁעִים

One hundred (me'a) - מֵאָה

One hundred and twenty (me'a ve3esrim) - מֵאָה וְעֶשְׂרִים

Two hundred (matayim) - מָאתַיִם

Three hundred (shlosh me'ot) - שְׁלוֹשׁ מֵאוֹת

Four hundred (arba3 me'ot) - אַרְבַּע מֵאוֹת

Five hundred (7amesh me'ot) - חֲמֵשׁ מֵאוֹת

Five hundred and sixty (7amesh me'ot veshishim) - חָמֵשׁ מֵאוֹת וְשִׁשִּׁים

Six hundred (shesh me'ot) - שֵׁשׁ מֵאוֹת

Seven hundred (shva3 me'ot) - שְׁבַע מֵאוֹת

Eight hundred (shmone me'ot) - שְׁמוֹנֶה מֵאוֹת

Nine hundred (tsha3 me'ot) - תְּשַׁע מֵאוֹת

One thousand (elef) - אלף

Two thousand (alpayim) - אלפיים

Three hundred (shloshet alafim) - שלושת אלפים

one million (milyon) - מיליון