All the solutions provided in **McGraw Hill Math Grade 1 Answer Key PDF Chapter 5 Lesson 3 Counting to 100 by 10s** as per the latest syllabus guidelines.

## McGraw-Hill Math Grade 1 Answer Key Chapter 5 Lesson 3 Counting to 100 by 10s

**Count**

**count by 10s aloud. Write the missing numbers.**

Question 1.

0 __10__ __20__ 30

Answer:

Forward counting is counting by adding ten more, every time.

The number next to 0 by 10s is 10 20 30

Question 2.

50 60 ___ ___

Answer:

Forward counting is counting by adding ten more, every time.

The number next to 60 by 10s is **70 80**

Question 3.

10 20 ___ ____

Answer:

Forward counting is counting by adding ten more, every time.

The number next to 20 by 10s is **30 40**

Question 4.

70 80 ___ ____

Answer:

Forward counting is counting by adding ten more, every time.

The number next to 80 by 10s is **90 100**

Question 5.

40 ___ ___ ____

Answer:

Forward counting is counting by adding ten more, every time.

The number next to 40 by 10s is **50 60 70**

Question 6.

60 70 ____ ___ ____

Answer:

Forward counting is counting by adding ten more, every time.

The number next to 70 by 10s is **80 90 100**

Question 7.

30 40 ___ 60 ___ ____

Answer:

Forward counting is counting by adding ten more, every time.

The number next to 40 by 10s** 50** 60 **70 80**

Question 8.

20 ___ ___ 50 ____

Answer:

Forward counting is counting by adding ten more, every time.

The number next to 20 by 10s is **30 40** 50 **60**