Early 5
9 + 6 = ? 7 + 6 = ? 8 + 6 = ? 9 + 7 = ?
Stage 5
57 – 25 = ? 85 – 8 = ? 32 + ? = 67 39 + 28 = ?
Early 6
? + 26 = 87 478 – 232 = ? 129 + 75 = ? 137 + 48 = ?
Stage 6
? + 147 = 175 83 – ? = 44 232 – 78 = ? 144 = 88 + ?
Early 7
4.2 + 3.14 = ? 23.22 – 22.63 = ? 5.34 – 2.9 = ? 0.8 + ? = 1.25
Stage 7
10.7 – ? = 9.79 0.885 + ? = 1.5 1.755 + ? = 2.2 0.76 + ? = 0.8
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