Математический тренажер "Все действия с рациональными числами"

1.        

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9.        

1.        

–7 + (–9)

–6 + (–9)

–5 + (–9)

–4 + (–8)

– 5 + (–8)

– 6 + (–8)

– 7 + (–8)

– 5 + (–6)

– 5 + (–7)

2.        

5 · (–6)

5 · (–7)

6 · (–6)

5 · (–7)

5 · (–8)

6 · (–7)

5 · (–9)

6 · (–8)

8 · (–9)

3.        

– 23 + 16

– 24 + 16

– 20 + 16

– 22 + 15

– 22 + 16

– 24 + 16

– 23 + 15

– 23 + 14

– 23 + 13

4.        

– 42 : (–6)

– 42 : (–7)

– 48 : (–6)

– 48 : (–8)

– 49 : (–7)

– 40 : (–8)

– 40 : (–5)

– 56 : (–8)

– 64 : (–8)

5.        

–9 – 9

–9 – 8

–9 – 7

–9 – 6

–8 – 6

–7 – 6

–8 – 8

–9 – 5

–8 – 5

6.        

–9 + 18

–9 + 17

–9 + 16

–9 + 15

–8 + 15

–8 + 14

–8 + 16

–8 + 17

–8 + 19

7.        

–9 ·( – 9)

–9 ·( – 8)

–9 ·( – 7)

–9 ·( – 6)

–9 ·( – 5)

–8 ·( – 8)

–7 ·( – 8)

–6 ·( – 8)

–4 ·( – 8)

8.        

5 – 9

5 – 8

5 – 7

5 – 10

6 – 10

6 – 9

6 – 8

6 – 7

7 – 9

9.        

–5 – (– 9)

–6 – (– 9)

–7 – (– 9)

–8 – (– 9)

–8 – (– 8)

–8 – (– 7)

–8 – (– 6)

–8 – (– 5)

–8 – (– 4)

10.    

–50 : 5

–50 : 10

–50 : 25

–55 : 5

–45 : 5

– 24 : 6

–32 : 4

–36 : 9

–56 : 8

11.    

10 – (– 9)

9 – (– 9)

8 – (– 9)

11 – (– 9)

11 – (– 8)

11 – (– 7)

11 – (– 6)

11 – (– 5)

11 – (– 4)

12.    

–6 · (–6)

–7 · (–6)

–6 · (–8)

–5 · (–5)

–7 · (–7)

–7 · (–8)

–7 · (–9)

–8 · (–9)

–8 · (–6)

13.    

– 1 + 0,4

– 1 + 0,5

– 1 + 0,6

– 1 + 0,7

0,2 + (– 0,5)

0,2 + (– 0,6)

0,2 + (– 0,7)

0,2 + (– 0,4)

0,2 + (– 0,2)

14.    

15.    

–2 · (–2) · (–2)

–3 · (–3) · (–3)

–4 · (–4) · (–4)

–1 · (–1) · (–1)

–5 · (–5) · (–5)

–1 · (–1) · (–1)

–3 · (–3) · (–3)

–2 · (–2) · (–2)

–4 · (–4) · (–4)

16.    

17.    

(–9)²

(–8)²

(–7)²

(–6)²

(–5)²

(–4)²

(–3)²

(–10)²

(–2)²

18.