---
id: 69894da754bf3ff872274e3f
title: Task 9
challengeType: 19
dashedName: task-9
lang: zh-CN
---

<!-- SPEAKING -->

# --instructions--

This task has no audio. Read the question below and select the correct answer.

# --questions--

## --text--

Which number is the largest: `七十八 (qī shí bā)`, `八十六 (bā shí liù)` or `八十七 (bā shí qī)`?

## --answers--

`七十八 (qī shí bā)`

### --feedback--

Compare the tens: `七 (qī)` is smaller than `八 (bā)`.

---

`八十七 (bā shí qī)`

---

`八十六 (bā shí liù)`

### --feedback--

This number has the same tens as `八十七 (bā shí qī)` but a smaller ones digit.

## --video-solution--

2

# --explanation--

First, compare the tens:

`七十八 (qī shí bā)` has `七十 (qī shí)` (70). `八十六 (bā shí liù)` and `八十七 (bā shí qī)` have `八十 (bā shí)` (80). 80 is larger than 70.

Next, compare the ones:

`八十七 (bā shí qī)` has 7. `八十六 (bā shí liù)` has 6. 7 is larger than 6, so `八十七 (bā shí qī)` is the largest number.
