By accessing our **180 Days of Math for Sixth Grade Answers Key Day 154** regularly, students can get better problem-solving skills.

## 180 Days of Math for Sixth Grade Answers Key Day 154

**Directions: Solve each problem.**

Question 1.

180 + 97 = __________

Answer:

180 + 97 = **277**

Explanation:

Perform addition operation on above two given numbers. Add 180 with 97 the sum is 277.

Question 2.

50 • 30 = ___________

Answer:

50 • 30 = **1,500**

Explanation:

Perform multiplication operation on above two given numbers. Multiply 50 with 30 the product is 1,500.

Question 3.

Answer:

Explanation:

Perform division operation on above two given numbers. Divide 240 by 6 the quotients is **40**.

Question 4.

Is 242,277 an odd or an even number?

Answer:

242,277 is an **odd number**.

Explanation:

When a number is divided by 2 leaves a remainder 1 is called odd number. Divide 242,277 by 2 the quotient is 121,138. The number 242,277 leaves a remainder of 1. So the given number is odd number.

Question 5.

Simplify \(\frac{6}{9}\).

Answer:

\(\frac{6}{9}\) = **2/3**

The simplified form of the fraction 6/9 is 2/3.

Question 6.

(17 + 5) × 2 – 3 = __________

Answer:

(17 + 5) × 2 – 3

= 22 × 2 – 3

= 44 -3

= 41

Explanation:

Add 17 with 5 the sum is 22. Now the expression is 22 × 2 – 3.

Next perform multiplication operation on the expression. Multiply 22 with 2the product is 44. Now the expression is 44 -3.

Perform subtraction operation. Subtract 3 from 44 the difference is 41.

Question 7.

\(\frac{3}{8}\) + = 1

Answer:

\(\frac{3}{8}\) + = 1

Explanation:

To get the sum 1. We have to perform addition operation. Add 3/8 with 5/8 the sum is 1. The unknown addend is 5/8.

Question 8.

Find y.

\(\frac{y}{10}\) = 4.3

y = ___________

Answer:

\(\frac{y}{10}\) = 4.3

y = 4.3 × 10

**y = 43**

Explanation:

To calculate y value we have to perform multiplication operation. Multiply 4.3 with 10 the product is 43.

Question 9.

Calculate the average speed when 180 km are traveled in 3 hours.

Answer:

Average speed = distance/time

Average speed = 180 km/3hours

Average speed = **60 km/hour** or 60 kilometer per hour

Explanation:

We know that average speed is equal to distance by time. The distance is equal to 180 kilometers and time is equal to 3 hours. Divide 180 by 3 the result is 60 kilometers per hour.

Question 10.

Complete the chart for the shape.

Name the figure |
Pentagonal Prism |

How many surfaces? | 7 |

How many vertices? | 10 |

Does it stack or roll? | Stack |

Is it a plane shape or a solid shape? | solid |

Answer:

In the above image we can observe a pentagonal prism. A pentagonal prism have 7 faces, 10 vertices and 15 edges. The pentagonal prism is a solid shape.

Question 11.

The numbers 20 through 30 were written on individual cards and placed in a bag. If you pull one card from the bag, what s the probability that the number on it will be made up of only straight lines?

Answer:

Question 12.

Complete the chart by rounding 1,673,424 to the specified place.

Ten | 1,673,420 |

Hundred | 1,673,400 |

Thousand | 1,673,000 |

Ten Thousand | 1,670,000 |

Hundred Thousand | 1,700,000 |

Million | 2,000,000 |

Answer:

Rule 1: If the rounding digit is 0, 1, 2, 3, or 4, we have to change all digits to the right of it to zeroes.

Rule 2: If the rounding digit is 5, 6, 7, 8, or 9, add one to the digit left to the rounding digit and change all digits to the right of it to zeroes including the rounding digit.

The given number is 1,673,424. By following the above rules the chart is completed by rounding 1,673,424 to the specified place.

**Ten:** If we are rounding to the nearest ten, after applying the above two rules, ones place value will become zero and the resulting number will be 1,673,420.

**Hundred:** If we are rounding to the nearest hundred, after applying the above two rules, tens place & ones place value will become zero and the resulting number will be 1,673,400.

**Thousand:** If we are rounding to the nearest thousand, after applying the above two rules, the places right to thousands place will become zero and the resulting number will be 1,673,000.

**Ten Thousand:** If we are rounding to the nearest ten thousand, after applying the above two rules, the places right to ten thousands place will become zero and the resulting number will be 1,670,000.

**Hundred Thousand:** If we are rounding to the nearest hundred thousand, after applying the above two rules, the places right to hundred thousands place will become zero and the resulting number will be 1,700,000.

**Million:** If we are rounding to the nearest million, after applying the above two rules, the places right to millions place will become zero and the resulting number will be 2,000,000.