May 2016 1 ixl base ten add sub

IXL Challenge Resources
First Grade IXL Topics: Addition Equations
B.16Addition facts - sums to 20
B.17Add tens I
B.18Add tens II
B.19Add a one-digit number to a two-digit number - without regrouping
B.20Regrouping tens and ones I
B.21Regrouping tens and ones II
B.22Add a one-digit number to a two-digit number - with regrouping
F.8Add and subtract tens
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Second Grade IXL Challenge Topics:
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Addition Equations
G.1Add multiples of 10
G.2Add a two-digit and a one-digit number - without regrouping
G.3Add a two-digit and a one-digit number - with regrouping
G.4Add two two-digit numbers - without regrouping
G.5Add two two-digit numbers - with regrouping
I.1Add multiples of 100
I.2Add two three-digit numbers
I.3Addition input/output tables - up to three digits