---
id: 698949d1f654bbaa579600ab
title: Task 7
challengeType: 19
dashedName: task-7
lang: zh-CN
---

# --instructions--

This task doesn't have audio. Read the question below and select the correct answer.

# --questions--

## --text--

The first number is `五十一 (wǔ shí yī)` and the third number is `七十九 (qī shí jiǔ)`. Which number should be placed in the middle as the second number to form an ascending sequence?

## --answers--

`六十五 (liù shí wǔ)`

---

`八十二 (bā shí èr)`

### --feedback--

`八十二 (bā shí èr)` (82) is larger than `七十九 (qī shí jiǔ)` (79), so it cannot be in the middle.

---

`四十六 (sì shí liù)`

### --feedback--

`四十六 (sì shí liù)` (46) is smaller than `五十一 (wǔ shí yī)` (51), so it cannot be in the middle.

---

`九十六 (jiǔ shí liù)`

### --feedback--

`九十六 (jiǔ shí liù)` (96) is larger than than `七十九 (qī shí jiǔ)` (79), so it can be in the middle.

## --video-solution--

1

# --explanation--

The middle number must be greater than `五十一 (wǔ shí yī)` (51) and smaller than `七十九 (qī shí jiǔ)` (79). `六十五 (liù shí wǔ)` (65) fits correctly in ascending order.
