(1)√3×√15
(2)√6×√12
(3)3√2×2√10×√5
(4)√3×2√2
(5)4√3×3√15
(6)8√55÷2√11
(7)3√2÷√3
(8)2√12÷√5
(9)48√6÷3√2
(10)√90×√6
(11)4√35×3√70
(12)-2√42×(-√14/7)
(13)√18×3√10×2√15
(14)3√15÷√5
(15)√28÷√3
(16)√24×√12÷√5
(17)√18×√30÷2√3
(18)2√6×√3×√2
(19)5√2+√18
(20)4√18-9√2
(21)10√2+3√8-7√2
(22)5√12-3√8-2√27
(23)√2-3√8-2√7
(24)2√3-5√8-√75+√18
(25)√5×(√15-4√3/5)
(26)(√80+√40)÷√5
(27)(2+√3)(3-√3)
(28)(3+√10)(√2-√5)
(29)(√5-√2)²
(30)(√7+√2)(√7-√2)
(31)(√6+2√3)÷√3
(32)(√8-√4)÷√2
(33)3√12+√27
(34)2√18-√9/2
(35)3√1/2+√1/8
(36)√2-√1/18
(37)5√12-7√8+√48
(38)√8-(3√32+2√18)
(39)√80-√20+√5
(40)√18+(√98-√27)
(41)√8-√2(√2+2)
(42)(2+√5)(3-2√5)
(43)√1/2-8×1/√8
(44)(√12-√2)²
(45)(√5+1)(√5-1)
(46)(3√6-2√3)÷√3
(47)(2√3+3√2)(2√3-3√2)
(48)√18-2√8
(49)2√12+√27
(50)5√12×3√18