Question

11 Calculează, după modelul dat:
MODEL: 8•6=7•6+6=42+6=48
a) 8x3=
3x6=
8×9=
b) 6x5=
6x7=
7x4=

Answer 1

a) 8 × 3 = 7 × 3 + 3 = 21 + 3 = 24

3 × 6 = 2 × 6 + 6 = 12 + 6 = 18

8 × 9 = 7 × 9 + 9 = 63 + 9 = 72

b) 6 × 5 = 5 × 5 + 5 = 25 + 5 = 30

6 × 7 = 5 × 7 + 7 = 35 + 7 = 42

7 × 4 = 6 × 4 + 4 = 24 + 4 = 28

Answer 2

a)
8•3=7•3+3=21+3=24
3•6=2•6+6=12+6=18
8•9=7•9+9=63+9=72
b)
6•5=5•5+5=25+5=30
6•7=5•7+7=35+7=42
7•4=6•4+4=24+4=28