1 км=1000 м;1м=100см;40000:100=400(км)-в 1 см глобуса
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Ответ:
(18 + 18)÷9=36:9=4
(18+18)÷9=18:9+18:9=2+2=4
(28+8)÷4=36:4=9
(28+8)÷4=28:4+8:4=7+2=9
(24+18)÷6=42:6=7
(24+18)÷6=24:6+18:6=4+3=7
1. 1 2/5 + 0,52 = 1 2/5 + 13/25 = 1 18/25
2. 4/7 - 0,4 = 4/7 - 2/5 = 6/35
3. 2,5 : 1 2/3 = 5/2 * 3/5 = 3/2 = 1 1/2
4. 1 1/15 + 1,15 = 1 1/15 + 1 3/20 = 2 13/60
5. 4 11/16 - 2,729 = 1 1917/2000
6. 1 2/7 * 3,5 = 4 1/2