87. Tezlik va masofa ma’lum bo’lsa, vaqt qanday topiladi? a) masofani tezlikka qo’shish kerak
b) masofani tezlikka ko’paytirish kerak
s) harakat vaqtini topish uchun masofani tezlikka bo’lish kerak
d) masofadan tezlikni ayirish kerak
88. Qayiq 7 soatda 63 km masofani suzib o’tadi. Agar qayiqning tezligi 3 km/soatga kamaysa, u shuvaqt ichida necha kilometr masofani bosib o’tadi? a) 42 km b) 49 km
s) 48 km d) 50 km
89. Hisoblang:_711023 512316 a) 198816 b) 198817
s) 198806 d) 197817
90. Detsimetr va santimetrlarda ifodalang: 78 sm; 86 sm; a) 7dm 6sm; 8dm 5sm b) 7dm 8sm; 8dm 9 sm
s) 7dm 4sm; 8dm 3sm d) 7dm 9sm; 8dm 6sm
91. Ifodaning qiymatini toping: 220+22×4-81÷9= a) 289 b) 290
s) 299 d) 270
92. a=2394, b=1426 bo’lsa, a-b; a+b ifodaning qiymatini toping. a) 968; 3820 b) 978; 3820
s) 968; 3920 d) 968; 3720
93. Avtomobil 60 km/soat tezlik bilan 4 soat yurdi. U qancha masofani bosib o’tgan? a) 180 km b) 60 km
s) 240 km d) 100 km
Ko’paytirish va bo’lish.
94. Hisoblang: *75*325
6 3
430; 975 b) 450; 975
s) 450; 875 d) 450; 985
95. Ushbu shaklda nechta kvadrat bor? a) 3 ta b) 1 ta
s) 4 ta d) 2 ta
96. Birinchi ko’paytuvchi 126, ikkinchi ko’paytuvchi 9, ko’paytmani toping. a) 1234 b) 1124
s) 1134 d) 1144
