# NSTSE (National Science Talent Search Exam- Unified Council) Class 3: Questions 450 - 455 of 2216

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## Question number: 450

» Mathematics » Addition and Subtraction

### Question

If red square represents TEN, then what number represents the given addition?

### Choices

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

a. | 44 | |

b. | 4 | |

c. | 208 | |

d. | 280 |

## Question number: 451

» Mathematics » Numbers

### Question

Use all digits above and answer the following questions:

The smallest 3- digit number formed is:

### Choices

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

a. | 751 | |

b. | 157 | |

c. | 175 | |

d. | 517 |

## Question number: 452

» Mathematics » Multiplication

### Question

Kanu has two Pizzas that are cut into 6 slices each. He and 3 friends eat 5 slices which of these shows one way to find the number of slices Kanu has left?

### Choices

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

a. | Multiply 2 by 6 and then subtract 5 | |

b. | Multiply 3 by 2 and then add 5 | |

c. | Multiply 2 by 2 and then add 4 | |

d. | Multiply 1 by 2 and then add 8 |

## Question number: 453

» Mathematics » Addition and Subtraction

### Question

One hundred more than 456 is:

### Choices

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

a. | 655 | |

b. | 556 | |

c. | 566 | |

d. | 656 |

## Question number: 454

» Mathematics » Multiplication

### Question

### Choices

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

a. | 2 | |

b. | 5 | |

c. | 6 | |

d. | 4 |

## Question number: 455

» Mathematics » Addition and Subtraction

### Question

Mira had 90 days of summer vacation. Each day she did one fun exercise. She swam on 30 of the days and played basketball on 22 of days. She rode her bike on all the other days of her vacation. Which number sentence shows one way to find the number of days that Mira rode her bike?

### Choices

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

a. | 90 + 30 - 22 | |

b. | 90 + 30 + 22 | |

c. | 90 – 30 – 22 | |

d. | 90 – 30 + 22 |