100 ichida va 100 dan o'tib hisoblash

Mavzu: 100 ICHIDA VA 100 DAN O'TIB HISOBLASH. Jadvaldan tashqari ko'paytirish va bo'lish amallarini bajaring. 30·2= 20·4= 50·2= 100:2= 60:3= 80:2= 30·2 3 o'nlik·2=6 o'nlik 30·2=60 100:2 10 o'nlik:2=5 o'nlik 100:2=50 20·4 2 o'nlik·4=8 o'nlik 20·4=80 60:3 6 o'nlik:3=2 o'nlik 60:3=20 50·2 5 o'nlik·2=10 o'nlik 50·2=100 80:2 8 o'nlik:2=4 o'nlik 80:2=40 Yig'indini songa ko'paytirishni ikki xil usulda ishlang. (3+3)·4 (3+3)·4=6·4=24 (3+3)·4=3·4+3·4=12+12=24 (5+2)·5 (5+2)·5=7·5=35 (5+2)·5=5·5+2·5=25+10=35 (4+3)·3 (4+3)·3=7·3=21 (4+3)·3=4·3+3·3=12+9=21 Yig'indini songa bo'lishni ikki xil usulda ishlang. (8+6):2 (8+6):2=14:2=7 (8+6):2=8:2+6:2=4+3=7 (16+4):4 (16+4):4=20:4=5 (16+4):4=16:4+4:4=4+1=5 (15+9):3 (15+9):3=24:3=8 (15+9):3=15:3+9:3=5+3=8 Sonni yig'indiga ko'paytiring. 3·26 2·35 6·13 3·26=3·(20+6)=3·20+3·6=60+18=78 2·35=2·(30+5)=2·30+2·5=60+10=70 6·13=6·(10+3)=6·10+6·3=60+18=78 Tenglamalarni tushuntirish bilan yeching. 19·x=57 x=57:19 x=3 19·3=57 57=57 63:x=7 x=63:7 x=9 63:9=7 7=7 x :21=4 x=21·4 x=84 84:21=4 4=4 Masala tuzing va uni yeching. 11kg ?, 7 kg yengil ? 4 kg 15 kg Masala tuzing va uni yeching. 15 kg ? 9 kg Masala tuzing va uni yeching. 40 so'm 100 so'm 20 so'm ? Agar b=42 bo'lsa, b+17, b:6 ifodalarning qiymatini toping. Agar a=8 bo'lsa, 96-a, a·9 ifodalarning qiymatini toping. Agar k=64 bo'lsa, k-64, 64:k ifodalarning qiymatini toping. b=42 b+17=42+17=59 b:6=42:6=7 a=8 96-a=96-8=88 a·9=8·9=72 k=64 k-64=64-64=0 64:k=64:64=1 Eni 18 sm va bo'yi 22 sm ga teng bo'lgan to'g'ri to'rtburchak chizing va uning perimetrini toping. Eni 8 dm, bo'yi 10 dm bo'lgan to'g'ri to'rtburchak chizing va uning yuzini toping. Tomonlari 7 sm ga teng bo'lgan kvadrat chizing va uning yuzini toping. a=18 sm, b=22 sm, P=? yechish: P=2·(a+b) P=2·(18+22)=80 (sm) Javob: P=80sm. a=7 sm, S=? yechish: S=a·a S=7·7=49 (sm²) Javob: S=49 sm² a=8 dm, b=10 dm, S=? yechish: S=a·b S=8·10=80 (dm²) Javob: S=80 dm² ...