To solve these problems, we need to count the base ten blocks.
*
Long rods represent
Tens (each rod equals 10).
*
Small cubes represent
Ones (each cube equals 1).
Here is the step-by-step counting for each number:
1.
* Count the rods: There is
1 rod. That is 10.
* Count the cubes: There is
1 cube. That is 1.
* Total: 10 + 1 =
11
2.
* Count the rods: There are
3 rods. That is 30.
* Count the cubes: There are
5 cubes. That is 5.
* Total: 30 + 5 =
35
3.
* Count the rods: There are
5 rods. That is 50.
* Count the cubes: There are
4 cubes. That is 4.
* Total: 50 + 4 =
54
4.
* Count the rods: There are
2 rods. That is 20.
* Count the cubes: Let's count them carefully. There are two columns of 4 cubes and one column of 3? No, looking closely at the group: there is a column of 4, a column of 4, and a single one on top? Let's recount.
* Left column of cubes: 4 high.
* Middle column of cubes: 4 high.
* Right column of cubes: Wait, let's look at the shape. It looks like two columns of 4 cubes and then... actually, let's just count every individual yellow block in that group.
* Top row: 3 blocks.
* Second row: 2 blocks.
* Third row: 2 blocks.
* Fourth row: 2 blocks.
* Fifth row: 2 blocks.
* Actually, let's look at the standard grouping. Usually, they are stacked.
* Column 1 (left): 5 blocks high? No.
* Let's count simply: 1, 2, 3, 4, 5, 6, 7, 8, 9.
* Let me re-examine image 4.
* Rods: 2 rods = 20.
* Cubes: There is a stack of 5 on the left? No.
* Let's look at the arrangement again. It looks like a group of 9 ones.
* Let's verify: Top row has 3. Below that are two columns of 3? No.
* Let's count: One column of 5? No.
* Okay, let's count individually:
* Leftmost cube stack: 5 cubes high.
* Middle cube stack: 4 cubes high.
* Rightmost cube stack: 0?
* Actually, looking at #4 again: It looks like two columns of cubes. The left column has 5 cubes. The right column has 4 cubes. Total cubes = 9.
* So, 20 + 9 =
29.
5.
* Count the rods: There are
7 rods. That is 70.
* Count the cubes:
* Left column of cubes: 5 cubes high.
* Right part: 2 cubes at the bottom.
* Total cubes: 5 + 2 = 7.
* Total: 70 + 7 =
77
6.
* Count the rods: There are
4 rods. That is 40.
* Count the cubes:
* Left column of cubes: 5 cubes high.
* Right column of cubes: 4 cubes high.
* Total cubes: 5 + 4 = 9.
* Total: 40 + 9 =
49
Final Answer:
1. 11
2. 35
3. 54
4. 29
5. 77
6. 49
Parent Tip: Review the logic above to help your child master the concept of place value worksheet hundreds tens ones.
