# 180 Days of Math for First Grade Day 163 Answers Key

By accessing our 180 Days of Math for First Grade Answers Key Day 163 regularly, students can get better problem-solving skills.

## 180 Days of Math for First Grade Answers Key Day 163

Directions: Solve each problem.

Question 1. The marked bone is _________.
7th position
Explanation:
Ordinals tells the position of the object or things.

Question 2.  Explanation:
7 + 2 + 5 = 14

Question 3.
17 – 10 = Explanation:
Let the unknown number be x
17 – 10 = x
7 = x

Question 4. + 9 = 8 + 10
Explanation:
Let the unknown number be x
x + 9 = 8 + 10
9x = 18
x = 18 – 9
x = 9

Question 5.
Will the object stack? Yes
Explanation:
The given picture book has flat surface which helps to stack the objects.

Question 6.
Would you use a ruler or a thermometer to measure the length of a book?
Ruler
Explanation:
Ruler is used to measure the length of the of the objects or books.
Thermometer is used to measure the temperature.

Question 7.
Favorite Activity

 Swings Slide Monkey Bars Balance Beam 8 5 7 2

How many children were surveyed?
22 children
Explanation:
children like to play swing = 8
children like to play slide = 5
children like to play monkey bars = 7
children like to play balance beam = 2
Total children surveyed for their favorite activity,
8 + 5 + 7 + 2 = 22

Question 8.
Dawn has a rock collection with 72 rocks. A friend gives her 10 more rocks. How many rocks are in Dawn’s collection now?