2 câu trả lời
7.1=7
7.2=14
7.3=21
7.4=28
7.5=35
7.6=42
7.7=49
7.8=56
7.9=63
7.10=70
8.1=8
8.2=16
8.3=24
8.4=32
8.5=40
8.6=48
8.7=56
8.8=64
8.9=72
8.10=80
9.1=9
9.2=18
9.3=27
9.4=36
9.5=45
9.6=54
9.7=63
9.8=72
9.9=81
9.10=90
7×1= 7 8×1=8 9×1=9
7×2 =14 8×2=16 9×2=18
7×3=21 8×3=24 9×3=27
7×4=28 8×4=32 9×4=36
7×5=35 8×5=40 9×5=45
7×6=42 8×6=48 9×6=54
7×7=49 8×7=56 9×7=63
7×8=56 8×8=64 9×8=72
7×9= 63 8×9=72 9×9=81
7×10=70 8×10=80 9×10=90
