By accessing our 180 Days of Math for First Grade Answers Key Day 21 regularly, students can get better problem-solving skills.
180 Days of Math for First Grade Answers Key Day 21
Directions Solve each problem.
Question 1.
Circle the smaller number.
18 12
Answer: 12 is smaller than 18.
Question 2.
Add.
Answer:
There are 5 groups on one side. And 5 groups on another side
5 + 5 = 10
Question 3.
Subtract.
Answer:
There are 7 rats in the above figure.
5 are crossed off.
So, by subtracting 5 from 7 we can find leftover rats.
7 – 5 = 2
Question 4.
Answer: 4
Explanation:
Let the missing number be x.
x – 3 = 1
x = 1 + 3
x = 4
So, the missing number is 4.
4 – 3 = 1
Question 5.
Color the triangle.
Answer:
Question 6.
Is the object shorter than your arm?
Circle: yes no
Answer:
The name of the object is the shoe.
The shoe is not shorter than your arm.
Question 7.
Count how many. Record with tally marks.
Answer:
Question 8.
Circle the groups that have the same amount.
Answer:
A – 3
B – 5
C – 5
Group A and B have the same amount of circles.