Trường THDL Đoàn Thị Điểm Ngày........tháng ...........năm........... Họ và tên: phiếu Ôn tập số 2 Bài 1: Đặt tính và tính: 654,9 + 45,753 24,9 + 57,36 + 5,45 75,86 – 38,275 288 – 93,37 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 74, 64 x 5,2 0,302 x 4,6 20,08 x 400 70,05 x 0,09 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 875,5: 35 72: 34 308 : 5,5 18,5 : 7,4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Bài 2: Tính giá trị biểu thức: 15,3 : ( 1 + 0,25 x 16 ) 40,28 – 22,5 : 12,5 + 1,7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1 x + : 2 25% x 3,2 - 3/5 : 6 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Bài 3: Tìm X: 470,04 : X = 240 x 0,1 801 : 100 – X = 1,99 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................... (X + 1,8) : 10 = 0,78 X x 0,25 – 2,34 = 3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... X x2 + X x3 + X x5 = 45,6 17,8 x X – X x 3,8 – X x4 = 0,7 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... = = = ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Bài 4: Tính nhanh: 0,25 x 611,77 x 40 14,66 – 1,26 – 2,66 – 5,74 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 36,4 x 99 + 36 + 0,4 13,28 x 9,9 + 1,328 ...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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