Question

1. calculate.

(1) \\(9\frac{2}{7} - \frac{3}{7} + \frac{4}{7}\\)
=

(2) \\(9\frac{2}{7} + \frac{4}{7} - \frac{3}{7}\\)
=

(3) \\(3\frac{1}{7} - \frac{3}{7} + \frac{5}{7}\\)
=

(4) \\(3\frac{1}{7} + \frac{5}{7} - \frac{3}{7}\\)
=

(5) \\(2\frac{1}{7} + \frac{5}{7} - 1\frac{4}{7}\\)
=

(6) \\(2\frac{1}{7} - 1\frac{4}{7} + \frac{5}{7}\\)
=

1. fill in the blanks. from the above, the pairs of problems with the same answer are (1) & , (3) & , and (5) & .

Explanation:

Calculate expressions (1) to (6)

$$
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$$

Match pairs with the same answer

$$
LATEXBLOCK1
$$

Answer:

Question 1

(1) \(9\frac{2}{7} - \frac{3}{7} + \frac{4}{7} = 9\frac{3}{7}\)

(2) \(9\frac{2}{7} + \frac{4}{7} - \frac{3}{7} = 9\frac{3}{7}\)

(3) \(3\frac{1}{7} - \frac{3}{7} + \frac{5}{7} = 3\frac{3}{7}\)

(4) \(3\frac{1}{7} + \frac{5}{7} - \frac{3}{7} = 3\frac{3}{7}\)

(5) \(2\frac{1}{7} + \frac{5}{7} - 1\frac{4}{7} = 1\frac{2}{7}\)

(6) \(2\frac{1}{7} - 1\frac{4}{7} + \frac{5}{7} = 1\frac{2}{7}\)

Question 2

From the above, the pairs of problems with the same answer are (1) & (2), (3) & (4), and (5) & (6).