Toán Lớp 5: Bài 1 : Tính nhanh 101 x 0,128

$101 ×0,128 – 0,128 $ $=101×0,128-1×0,128$ $=0,128×(101-1)$ $=0,128×100$ $=12,8$ #Lazy warriors @Xin ctrlhn ạ

101 xx 0,128 - 0,128 = 101 xx 0,128 - 0,128 xx 1 = 0,128 xx ( 101 - 1) = 0,128 xx 100 = 12,8

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Toán Lớp 5: Bài 1 : Tính nhanh 101 x 0,128 – 0,128 =