1. HARD

99 \(+\) 22 \(=\)
 
2. HARD

14 \(+\) 87 \(=\)
 
3. HARD

47 \(+\) 39 \(=\)


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More questions:
Representing Multiplication as Combining of Equal Groups  |   Transformations of Shapes  |   Finding Lines of Symmetry  |   Grade 2 Challenges  |   Rounding to the Nearest 10