Page 82 - Bangladesh_classwiz_BOOK2018_rev_Neat

n‡Z ‡`Lv hv‡”Q ‡h, e¨envi K‡i cÖvß gvb . 7781512504, 6 Gi Rb¨ Av‡iv fv‡jv Abygvb,

…
‡hLv‡b ZZxq w¯ŒbwU 6 Gi cÖK…Z A_© wb‡`©k Ki‡Q|

eZ©gv‡b MYbv Kivi Rb¨ jMmviYxi cÖ‡qvRb nq bv, we‡kl K‡i hLb K¨vjKy‡jUi _v‡K| c~‡e© MYbv Kivi Rb¨
Kxfv‡e jMvwi`g e¨envi Kiv n‡Zv Zv ‡_‡K jMvwi`‡gi ‰ewkó¨ m¤ú‡K© cwi®‹vi aviYv Kiv hvq|

jMvwi`‡gi ‰ewk󨸇jv, hv c~‡e© G‡K RbwcÖq K‡i‡Q, Zv g~jZ m~PK wewa n‡Z ‡bIqv n‡q‡Q| GwU wb‡P e¨vL¨v Kiv
n‡jv-

4.3
10 3.1 × 10 1.2 = 10 3.1+1.2 = 10
1.2 3
Ges (10 ) = 10 1.2×3 = 10 3.6

GB weeiY ‡_‡K ejv hvq, hLb ‡Kv‡bv msL¨v‡K 10 Gi NvZ wn‡m‡e ‡jLv nq, ZLb G‡K ¸Y Kivi Rb¨ G‡`i
NvZ¸‡jv‡K ‡hvM Ki‡Z nq| Avevi ‡Kv‡bv NvZ wewkó msL¨vi Ab¨ ‡Kv‡bv NvZ _vK‡j G¸‡jv‡K ¸Y Ki‡Z nq|
K¨vjKy‡jUi Avmvi c~‡e© eo msL¨v‡K Dc¯’vcb Kivi Rb¨ jMvwi`g e¨envi Kiv n‡Zv, hvi d‡j weÁvbx I
cÖ‡KŠkjxmn mK‡ji Rb¨ MYbv Kiv mnR n‡qwQj|

GB c×wZi mnR e¨vL¨vi Rb¨ wb‡Pi `ywU w¯Œb j¶¨ Kwi|

†`Lv hv‡”Q ‡h, 2 + 3 = 6 ‡Kbbv `yBwUi gvbB (≈ 0.778) GK| hw`I 3 × 2 = 6 GKwU ¸Y
cÖwµqvi mv‡_ m¤úwK©Z, wKš‘ hLb jMvwi`g e¨envi Kiv nq ZLb ïaygvÎ ‡hvM cÖwµqvi cÖ‡qvRb c‡i| djvdj
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wn‡m‡e 6 cvIqvi Rb¨ cÖvß dj‡K (G‡¶‡Î 0.778) jMvwi`g ‡_‡K msL¨vq iƒcvši Kivi `¶Zv _vK‡Z n‡e,
djvdj‡K m~PK wn‡m‡e e¨envi K‡i K¨vjKy‡jUi GwU K‡i _v‡K| Avevi ‡Kv‡bv NvZwewkó msL¨vi Ab¨ ‡Kv‡bv NvZ
_vK‡j G¸‡jv‡K ¸Y Ki‡Z nq|

c~‡e©, G wecixZ c×wZwU K¨vjKy‡jU†i bq eis jMmviYx e¨envi K‡i Kiv n‡Zv|

fv‡Mi ‡¶‡ÎI Abyiƒc aviYv e¨envi Kiv nq| 6 ÷ 3 = 2 ‡`Lv‡bvi Rb¨ jMvwi`‡gi Ašidj e¨envi Kiv nq|
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