Bài 2 trang 14 VBT Toán 5 tập 1
4/8
Tính (theo mẫu SGK)
a) 25×98 = ............................................................................................................................
107×2120 = ..............................................................................................................................
6×34 = ..................................................................................................................................
910×73×514 = .......................................................................................................................
b) 65:920 = .........................................................................................................................
8:165 = ..................................................................................................................................
214:7 = ................................................................................................................................
6×112:52 = ..........................................................................................................................
a) 25×98 = 21×95×84=1×95×4=920
107×2120 = 101 ×21371×202=1×31×2=32
6×34 = 63×31×42=3×31×2=92
910×73×514 = 93×71×51102×31×142=3×1×12×1×2=34
b) 65:920 =65×209=62 × 20451×93=2×41×3=83
8:165=8×516=81×51×162=1×51×2=52
214:7=214×17=213×14×71=3×14×1=34
6×112:52=6×112×25=6 1×1×211×121×5=1×1×11×1×5=15