Name that Pattern
What is the answer?
100

23 - 0 = 23

Minus Zero Facts

100

8 + 8 =?

16

200

7 + 7 = 14

Doubles Facts

200

54 + 10 = X

64

300

87 - 87 = 0

Take all facts

300

122 + 200 = T

322
400

18 - 3 = 15

Count Back Facts

400

345 - 20 = D

325

500

7 + 3 = 10

Make 10 Fact

500

231 - 120 = D

111

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