How many do you see?

There are 9 ducks in the pond.
There are 7 ducks on the grass.
How many ducks are on the pond and in the grass?
Show your thinking using drawings, numbers, or words.

Find the number that makes each equation true.

1. \(10 + \boxed{\phantom{\frac{aaai}{aaai}}} = 18\)
2. \(17 - \boxed{\phantom{\frac{aaai}{aaai}}} = 7\)
3. \(9 + 8 = \boxed{\phantom{\frac{aaai}{aaai}}}\)
4. \(19 = \boxed{\phantom{\frac{aaai}{aaai}}} +14\)

Find the value of each sum.
Show your thinking using drawings, numbers, or words.

1. \(65 + 3\)

2. \(65 + 30\)

Find the value of \(31 + 24\).
Show your thinking using drawings, numbers, or words.

1. Find the value of \(26 + 53\)
   Show your thinking using drawings, numbers, words, or equations.
2. Can you find the value in a different way?

1. Find different ways you can use 2 two-digit numbers to make 86.

   Use the drawing or connecting cubes, if they are helpful.

   

2. Can you make 86 by adding a 2-digit number to itself?

Mai and Han have 75 counters. 
How many counters could Mai have?
Then how many counters would Han have?
Find at least 5 different solutions.