Question

what number is shown by the place value blocks?

Explanation:

Step1: Determine the value of large blocks

Assume each large block (the square - like one) represents 100. From the figure, we can see that there are 7 large blocks. So the value contributed by the large blocks is $7\times100 = 700$.

Step2: Determine the value of small blocks

Assume each small block (the long - rectangular one) represents 10. From the figure, we can see that there are 7 small blocks. So the value contributed by the small blocks is $7\times10=70$.

Step3: Calculate the total number

To find the total number represented by the place - value blocks, we add the values from the large blocks and the small blocks. So the total number $N=700 + 70=770$.

Answer:

770