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math vocabulary
Place Value
Using nice numbers
Numbers in expanded form (tens and ones)
Adding 10, 11, and 9
100
sum
What is the answer called in an addition problem? 2+2=4 What is the 4 called?
100
flat
What is a hundred called?
100
21+22
20 + 23
100
67
60 + 7
100
16 + 10
26
200
addend
What are the two numbers that are added together called in an addition problem? 2+3=5 What are the 2 and the 3 called?
200
long or rod
What is a ten called?
200
16 + 12
20 + 8
200
42
40+2
200
27 + 10
37
300
doubles
What is a problem called that has both addends the same? What is 3+3 or 4+4 or 5+5 called?
300
unit
What is a one called?
300
31 + 42
30 + 43
300
88
80 + 8
300
34 + 9
33
400
near doubles
What is it called when a problem has two addends that are one more or one less than each other? What is 7+8 or 9+10 or 10+11 called?
400
42 + 25
40 + 27
400
99
90 + 9
400
34 + 11
45
500
nice number
What is number called that has a zero on the end of it? What is 10 or 20 or 30 or 40 or 50 called?
500
19 + 22
20 + 21
500
12
10 + 2
500
16 + 11
27