Question

1.Сравни выражения каждой строки. (27+45):9 27:9+45:9 (42+21):7 42:7+21:7 2. Проверь верность утверждения: найди значения выражения разными способами. (24+32):8 (18+9):3 (15+25):5 срочно надо помогите пожалуйста

Answer 1

1. (27+45):9=27:9+45:9
72:9 (8)=3+5
(42+21):7 (9)=6+3
2. (24+32):8=7
1 способ:
1)24+32=56
2)56:8=7
2 способ:
1)24:8=3
2)32:8=4
3)3+4=7
(18+9):3=7
1 способ:
1)18+9=21
2)21:3=7
2 способ:
1)18:3=6
2)3:3=1
3)6+1=7
(15+25):5=8
1 способ:
1)15+25=40
2)40:5=8
2 способ :
1)15:5=3
2)25:5=5
3)3+5=8

Answer 2

Comparing Expressions

Let's compare the given expressions:

1. (27 + 45) : 9 2. 27 : 9 3. 45 : 9 4. (42 + 21) : 7 5. 42 : 7 6. 21 : 7

Let's calculate the values of each expression.

1. (27 + 45) : 9 - Result: (27 + 45) : 9 = 72 : 9 = 8 2. 27 : 9 - Result: 27 : 9 = 3 3. 45 : 9 - Result: 45 : 9 = 5 4. (42 + 21) : 7 - Result: (42 + 21) : 7 = 63 : 7 = 9 5. 42 : 7 - Result: 42 : 7 = 6 6. 21 : 7 - Result: 21 : 7 = 3

Verifying the Statement

Let's verify the statement by finding the values of the expression in different ways:

1. (24 + 32) : 8 - Result: (24 + 32) : 8 = 56 : 8 = 7

2. (18 + 9) : 3 - Result: (18 + 9) : 3 = 27 : 3 = 9

3. (15 + 25) : 5 - Result: (15 + 25) : 5 = 40 : 5 = 8

The statement is verified as the values of the expressions are as calculated.

I hope this helps! If you have any other questions, feel free to ask.