Grade 1 Math: Count and Read Numbers Up to 100 Reviewer & Worksheets

Name:

Grade & Section:

Date:

Score:

📦 1. Tens and Ones with Base-10 Blocks

Example A: Number 47 4 Tens + 7 Ones

10

+

40 + 7 = 47 • Read as: “forty-seven”

Example B: Number 63 6 Tens + 3 Ones

10

+

60 + 3 = 63 • Read as: “sixty-three”

📖 2. Number Words Reference Chart

10

ten

20

twenty

30

thirty

40

forty

50

fifty

60

sixty

70

seventy

80

eighty

90

ninety

100

one hundred

💡 Spelling Rule: Combine tens and ones using a hyphen: e.g., twenty-five (25), fifty-eight (58), ninety-nine (99).

🚀 3. Skip Counting Patterns (By 2s, 5s, 10s)

Skip Count by 10s

10, 20, 30, 40, 50, 60, 70, 80, 90, 100

Skip Count by 5s

5, 10, 15, 20, 25, 30, 35, 40, 45, 50

Skip Count by 2s

2, 4, 6, 8, 10, 12, 14, 16, 18, 20

Name:

Grade & Section:

Date:

Score:

Part A

Read & Match: Write the letter of the matching number word in the box next to each numeral.

1. 24

2. 45

3. 68

4. 73

5. 91

A. forty-five

B. ninety-one

C. twenty-four

D. seventy-three

E. sixty-eight

Part B

Tens & Ones: Count the tens and ones. Write the total standard number in each box.

6 3 tens and 5 ones =

(30 + 5)

7 5 tens and 2 ones =

(50 + 2)

8 7 tens and 0 ones =

(70 + 0)

9 8 tens and 6 ones =

(80 + 6)

10 9 tens and 9 ones =

(90 + 9)

Part C

Write the Numeral or Word: Write the numeral or spelled-out number word on the answer line.

11 Write the numeral for thirty-six:

Answer:

12 Write the word for the number 50:

Answer:

13 Write the numeral for eighty-four:

Answer:

14 Write the word for the number 100:

Answer:

Name:

Grade & Section:

Date:

Score:

Part D

Missing Numbers: Write the missing numbers in the dashed boxes to complete each number track.

15.

36

37

?

39

?

41

16.

58

?

60

61

?

63

17.

87

88

?

91

92

18.

95

96

?

98

?

100

Part E

Compare Numbers: Write > (greater than), < (less than), or = (equal to) in each circle.

19 42 24

20 65 65

21 78 87

22 90 89

23 53 57

24 100 99

Part F

Skip Counting & Word Problem: Complete the skip counting sequences and solve the real-life math problem.

25 Skip Count by 10s:

10, 20, 30, [ ], 50, [ ], 70, 80, [ ], 100

26 Skip Count by 5s:

15, 20, 25, [ ], 35, [ ], 45, 50

27 Skip Count by 2s:

12, 14, [ ], 18, [ ], 22

28 Word Problem:

Ben has 6 bags with 10 marbles in each bag, and 4 loose marbles. How many marbles does Ben have in all?

Answer: marbles

Student Name:

Total Score:

Mastery Level:

Part A: Number Words

1. 24 C (twenty-four)
2. 45 A (forty-five)
3. 68 E (sixty-eight)
4. 73 D (seventy-three)
5. 91 B (ninety-one)

Part B & C: Tens & Ones / Words

6. 3 tens, 5 ones 35
7. 5 tens, 2 ones 52
8. 7 tens, 0 ones 70
9. 8 tens, 6 ones 86
10. 9 tens, 9 ones 99
11. thirty-six 36
12. 50 fifty
13. eighty-four 84
14. 100 one hundred

Part D, E, F: Sequences & Counting

15. Missing 38, 40
16. Missing 59, 62
17. Missing 89, 90
18. Missing 97, 99
19. 42 ___ 24 >
20. 65 ___ 65 =
21. 78 ___ 87 <
22. 90 ___ 89 >
23. 53 ___ 57 <
24. 100 ___ 99 >
25. By 10s 40, 60, 90
26. By 5s 30, 40
27. By 2s 16, 20
28. Problem 64 marbles

📊 Diagnostic Mastery Matrix (Evaluation Framework)

Total Score	Mastery Level	Diagnostic Insights & Recommended Action
24 – 28 points	Mastery (Exceeds Standard)	Demonstrates exceptional fluency in reading, writing, and modeling numbers up to 100. Ready for 2-digit addition and subtraction.
18 – 23 points	Proficient (Meets Standard)	Firm grasp of base-10 and place value. Reinforce correct spelling of number words such as forty and eighty.
12 – 17 points	Developing (Approaching Standard)	Review skip counting patterns and numerical order using a 100s pocket chart or visual number lines.
0 – 11 points	Beginning (Needs Support)	Provide concrete hands-on manipulatives (bundles of 10 popsicle sticks, linking cubes, ten-frames) before abstract numerals.

💡 Teacher & Parent Tip: To build strong early numeracy, integrate real-life counting at home: group coins or snacks into piles of 10, play “Who Has More?” with toys, and practice skip counting while walking or clapping!

Count & Read Numbers Up to 100

Study Guide: Counting & Reading Numbers Up to 100

📦 1. Tens and Ones with Base-10 Blocks

📖 2. Number Words Reference Chart

🚀 3. Skip Counting Patterns (By 2s, 5s, 10s)

Number Words & Base-Ten Models

Sequences, Comparing, & Skip Counting

Answer Key & Diagnostics

Complete Answer Key (28 Total Items)

📊 Diagnostic Mastery Matrix (Evaluation Framework)