3.
Vaqt 12:00 ekanligini ko‘rsatayotgan soatning minut
millari 90 gradusga burilsa, soat necha bo‘lgan
bo‘ladi? Soat millari 180° ga burilsachi?
4.
Rasmdagi doiraning markazidan tutib,
necha gradusga burilsa, yana ustma
ust tushadigan rasm hosil bo‘ladi?
5.
a) Qanday ikki sonning ko‘paytmasi ularning yig‘in
disiga teng?
b) Qanday ikki sonning yig‘indisi ularning ayirmasi
ga teng?
d) Qanday ikki sonning ko‘paytmasi ularning bo‘lin
masiga teng?
6.
Tenglamalarni yeching va javoblarini tek shiring:
x
– 2461 = 5364 – 1681
2356 +
x
= 3537 + 269
6271–
x
= 2347 + 257
x
– 356 = 456 + 168
7.
Sekundlarda ifodalang: 1 min 40 s; 2 min 8 s; 3 min
20 s; 4 min 10 s; 5 min 50 s; 6 min 40 s
Namuna: 1 min 40 s = 60 s + 40 s = 100 s.
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