Question

Как Томми быстро найти значения выражений из домашнего задания 128 *2 +172*2 560:(201-197)*0 189:9+711:9 195*5-5*195 85*7+85*3 97+97*9 98*4-89*4 92*9-92*8 728-69-69

Answer 1

1)-12•5=60; -9•(24)=216; 26•(12)=312; -48•(-1)=48; -57•0=0; -39•1=-39
2) 72:(-24)=-3; -96:(-8)=12; -49:7=-7; -97:1=-97; 0:(-42)=0; -54:(-1)=54
3)41•(-3)=-723; -37:(-37)=1; -25•(-5)=125; -39: 39=-1
4) 172:(-422:211•43)=-2; -432:(-9):(-24)=-2

Answer 2

Finding the Values of Expressions from Homework

To quickly find the values of the given expressions, Tommy can follow these steps:

1. 128 * 2 - The value of 128 multiplied by 2 is 256.

2. 172 * 2 - The value of 172 multiplied by 2 is 344.

3. 560:(201-197)*0 - The expression simplifies to 560 divided by 4, which equals 140.

4. 189:9 - The value of 189 divided by 9 is 21.

5. 711:9 - The value of 711 divided by 9 is 79.

6. 195 * 5 - 5 * 195 - The expression simplifies to 975 - 975, which equals 0.

7. 85 * 7 - The value of 85 multiplied by 7 is 595.

8. 85 * 3 - The value of 85 multiplied by 3 is 255.

9. 97 - The value of 97 is 97.

10. 97 * 9 - The value of 97 multiplied by 9 is 873.

11. 98 * 4 - 89 * 4 - The expression simplifies to 392 - 356, which equals 36.

12. 92 * 9 - 92 * 8 - The expression simplifies to 828 - 736, which equals 92.

13. 728 - 69 - 69 - The expression simplifies to 590.

By following these steps, Tommy can quickly find the values of the given expressions from his homework.