Question

There are 40 stones and 30 pebbles. How many stones and pebbles are there in total?

• A. 70
• B. 340
• C. 10
• D. 430

Answer 1

The correct option is A 70

Number of stones $=40$
Number of pebbles $=30$
Total number of stones and pebbles $=40+30$

When we add 40 and 30 vertically, the total number of rods is our answer. Here, the total count is 7 rods and 0 units, which is 7 Tens and 0 Ones. So, the total number of stones and pebbles is 70.

	T	O	Tens	Ones
	4	0
+	3	0
	7	0

Hence, Option C is correct.