1: Tính nhẩm
a)
\(0 \times 2 = …\) \(0 \times 5 = …\) \(3 \times 0 = …\)
\(1 \times 0 = …\) \(2 \times 0 = …\) \(5 \times 0 = …\)
\(0 \times 3 = …\) \(0 \times 1 = …\)
b)
\(0:5 = …\) \(0:4 = …\) \(0:3 = …\)
\(0:1 = …\)
2: Số ?
3: Tính
a)
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\(\eqalign{ & 4:4 \times 0 = ……… \cr & {\rm{ = }}……… \cr} \) \(\eqalign{ & 8:2 \times 0 = ……… \cr & {\rm{ = }}……… \cr} \) \(\eqalign{ & 3 \times 0:2 = ……… \cr & {\rm{ = }}……… \cr} \)
b)
\(\eqalign{ & 0:5 \times 5 = ……… \cr & {\rm{ = }}……… \cr} \) \(\eqalign{ & 0:2 \times 1 = ……… \cr & {\rm{ = }}……… \cr} \) \(\eqalign{ & 0 \times 6:3 = ……… \cr & {\rm{ = }}……… \cr} \)
1: Tính nhẩm
a)
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\(0 \times 2 = 0\) \(0 \times 5 = 0\) \(3 \times 0 = 0\)
\(1 \times 0 = 0\) \(2 \times 0 = 0\) \(5 \times 0 = 0\)
\(0 \times 3 = 0\) \(0 \times 1 = 0\)
b)
\(0:5 = 0\) \(0:4 = 0\) \(0:3 = 0\)
\(0:1 = 0\)
2: Số ?
3: Tính
a)
\(\eqalign{ & 4:4 \times 0 = 1 \times 0 \cr & {\rm{ = 0}} \cr} \) \(\eqalign{ & 8:2 \times 0 = 4 \times 0 \cr & {\rm{ = 0}} \cr} \) \(\eqalign{ & 3 \times 0:2 = 0:2 \cr & {\rm{ = 0}} \cr} \)
b)
\(\eqalign{ & 0:5 \times 5 = 0 \times 5 \cr & {\rm{ = 0}} \cr} \) \(\eqalign{ & 0:2 \times 1 = 0 \times 1 \cr & {\rm{ = 0}} \cr} \) \(\eqalign{ & 0 \times 6:3 = 0:3 \cr & {\rm{ = 0}} \cr} \)
