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(1)2.78 × 1000=2780
(2)78.7 × 10=787
(3)21.42 × 100=2142
(4)22.4 × 1000=22400
(5)54.33 × 10=543.3
(6)79.01 × 100=7901
(7)11.39 × 1000=11390
(8)13.35 × 100=1335
(9)24.18 × 10=241.8
(10)40.27 × 10=402.7
(11)49.69 × 1000=49690
(12)70.62 × 100=7062
(13)45.29 × 1000=45290
(14)77.67 × 10=776.7
(15)53.84 × 100=5384
(16)69.33 × 10=693.3
(17)36.59 × 100=3659
(18)33.15 × 1000=33150
(19)22.13 × 1000=22130
(20)82.57 × 100=8257
(21)21.67 × 10=216.7
(22)72.26 × 100=7226
(23)85.05 × 10=850.5
(24)88.53 × 1000=88530
(25)87.19 × 10=871.9
(26)28.47 × 100=2847
(27)48.13 × 1000=48130
(28)4.72 × 100=472
(29)0.39 × 1000=390
(30)25.21 × 10=252.1
(31)42.54 × 100=4254
(32)79.25 × 1000=79250
(33)29.15 × 10=291.5
(34)72.97 × 1000=72970
(35)33.53 × 100=3353
(36)18.25 × 10=182.5
(37)50.3 × 10=503
(38)11.4 × 1000=11400
(39)12.6 × 100=1260
(40)74.52 × 10=745.2