# NSTSE Class 5: Questions 252 - 256 of 716

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## Question number: 252

### Question

The odometer of a car shows km. How many thousand kilometers is the reading?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 7 | |

b. | 5 | |

c. | 6 | |

d. | 10 |

## Question number: 253

### Question

For how many tens does the digit 8 stand in the product of 820 and 145?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 8 | |

b. | 8000 | |

c. | 800 | |

d. | 80 |

## Question number: 254

» General Science » Air, Water and Weather

### Question

Which of the following shows the correct percentage of the composition of air?

### Choices

Choice (4) | Response | |
---|---|---|

a. | ||

b. | ||

c. | ||

d. | All of the above |

## Question number: 255

» General Science » Air, Water and Weather

### Question

What is shown by this experiment?

### Choices

Choice (4) | Response | |
---|---|---|

a. | Air exerts pressure. | |

b. | Air is not necessary for burning. | |

c. | Air is necessary for burning. | |

d. | None of the above |

## Question number: 256

### Question

Find the difference of the greatest 6-digit number and the smallest 4-digit number.

### Choices

Choice (4) | Response | |
---|---|---|

a. | 9, 98, 999 | |

b. | 9, 89, 999 | |

c. |
| |

d. | 1, 00, 000 |