idc 1-5 mavzular bo‘yicha takrorlash testi
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idc 1-5 mavzular bo‘yicha takrorlash testi i-natural sonlar va ular ustida amallar 1. hisoblang: 120: 12 − (169: 13 − 12) a) 10 b) 9 c) 8 d) 13 2. 145 − 55+. . . +145 − 55 + 145 − 55⏟ 14 𝑡𝑎 𝑠𝑜𝑛 yig’indini ko‘paytma shakliga aylantirib hisoblang? a) 246 b) 430 c) 630 d) 300 3. 30 + 30+. . . +30 = 6060 yig’indidagi barcha 30 sonlari 80 ga o‘zgartirilsa, yig’indining qiymati nechaga teng bo’ladi. a) 16160 b) 13130 c) 15150 d) 14140 4. qulay usulda hisoblang: 1248 + 1452 + 8752 + 2548 =? a) 15000 b) 13000 c) 16000 d) 14000 5. qulay usulda hisiblang: 67 ∙ 43 − 43 ∙ 37 − 30 …
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