Let's solve each problem step by step using the
base ten blocks representation.
Understanding Base Ten Blocks:
- A
long rod (vertical stack of 10 small cubes) represents
10 (tens).
- A
single small cube represents
1 (ones).
- A
flat square (not shown here) would represent
100 (hundreds), but in this worksheet, we only see rods and cubes.
We’ll count:
- Number of
tens rods → multiply by 10
- Number of
ones cubes → count individually
- Add them together to get the total number.
---
Problem 1:
-
Tens: 1 rod → 1 × 10 = 10
-
Ones: 1 cube → 1
-
Total: 10 + 1 =
11
✔ Answer:
11
---
Problem 2:
-
Tens: 3 rods → 3 × 10 = 30
-
Ones: 5 cubes → 5
-
Total: 30 + 5 =
35
✔ Answer:
35
---
Problem 3:
-
Tens: 5 rods → 5 × 10 = 50
-
Ones: 4 cubes → 4
-
Total: 50 + 4 =
54
✔ Answer:
54
---
Problem 4:
-
Tens: 2 rods → 2 × 10 = 20
-
Ones: Count the small cubes:
- There are 9 ones cubes arranged in a group.
-
Total: 20 + 9 =
29
✔ Answer:
29
---
Problem 5:
-
Tens: 7 rods → 7 × 10 = 70
-
Ones: 6 cubes → 6
-
Total: 70 + 6 =
76
✔ Answer:
76
---
Problem 6:
-
Tens: 4 rods → 4 × 10 = 40
-
Ones: Count the small cubes:
- There are 8 ones cubes (arranged in two rows: 4 on top, 4 below)
-
Total: 40 + 8 =
48
✔ Answer:
48
---
Final Answers:
1.
11
2.
35
3.
54
4.
29
5.
76
6.
48
You can now fill these numbers into the blank boxes on the worksheet!
Parent Tip: Review the logic above to help your child master the concept of ones and tens worksheet.
