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I have eleven beads. How many more to make 20? Show an equation.
11 + 9 = 20
I need nine beads.
I have fifteen beads. How many more beads to make twenty? Show an equation.
15 + 5 = 20
I need five beads.
I have six beads. How many more beads to make twenty? Show an equation.
6 + 14 = 20
I need fourteen beads.
There are twenty beads in all. I have ten beads. How many beads are hidden?
20 - 10 = 10
Ten beads are hidden.
There are twenty beads in all. I have five beads. How many beads are hidden?
20 - 5 = 15
There are 15 beads hidden.
There are twenty beads in all. I have fourteen beads. How many beads are hidden?
20 - 14 = 6
There are six beads hidden.
There are twenty beads in all. I have seven beads. How many beads are hidden?
20 - 7 = 13
Thirteen beads are hidden.
There are twenty beads in all. I have fourteen beads. How many beads are hidden?
20 - 14 = 6
There are six beads hidden.
Megan picked eight flowers. Susan picked six more flowers. How many flowers did they have in all? Show your work. Write an equation (number + unit)
8 + 6 = f
f = 14 flowers in all
Norah baked eleven big cookies. She ate some of the cookies after her lunch. When her brother finished his lunch, he wanted some cookies also. There were eight cookies left. How many cookies did Norah eat. Show your work. Write an answer.
11 - c = 8
c = 3 cookies
Which Number Rack has more beads. Number Rack 1 or 2? How many more beads?
Number Rack 1 has five more beads than Number Rack 2, because 15 - 10 = 5.
Which Number Rack has more beads. Number Rack 1 or 2? How many more beads?
Number Rack 2 has more beads than Number Rack 1, because 11 - 10 = 2.
Which Number Rack has more beads. Number Rack 1 or 2? How many more beads?
Number Rack 2 has more beads than Number Rack 1, because 13 - 12 = 1.
Which Number Racks show an odd number or beads?
Number Racks a (3), c (7), d (11), e (17), h (11)show an odd number of beads.
What is the sum of 2 + 10?
12, because 2 + 10 = 12.
What is the sum of 7 + 8?
15, because 7 + 7 = 14, 14 + 1 = 15. So, 7 + 8 = 15.
