Nªu nhanh phÐp tÝnh thÝch hîp..[r]
Trang 11 – 0 = 0 = 1
2 – 0 = 0 = 2
3 – 0 = 3 = 0
5 – 0 = 3 =
2
2 – 0 = 2 = 0
5 – 0 = 2 =
3
5 – 0 = 1 =
4
1 – 0 = 1 = 0
5 – 0 = 5 = 0
4 – 0 = 4 = 0
5 – 0 = 5 =
0
5 – 0 = 4 =
1
3 – 0 = 0 = 3
4 – 0 = 0 = 4
5 – 0 = 0 = 5
1 Tính:
Trang 2Bµi 2: TÝnh
0 + 2 =
2 + 0 =
3 - 0 =
0 + 3 =
2 – 0 = 0 =
3 + 0 =
2 – 0 = 2 = 3 – 0 = 3 =
0 + 4 =
2 0
3
2
0 0
3
4 + 0 =
4 - 4 =
4 - 0 =
4 4
4
Trang 35 – 5 =
5 – 0
= 5
5 + 0
= 5
4 – 0
= 4
4 + 0
= 4
3 – 0 = 3
0 + 0
= 0
0
0
0
0
4
0
3 3
0 0
?
Sè
Bµi tËp 3:
Trang 42 - 2 = 0
Bµi 4:ViÕt sè thÝch hîp
Trang 5Trß ch¬i
Nªu nhanh phÐp tÝnh thÝch hîp.