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Addition Within 20 — Horizontal Worksheet

Equation-style (horizontal) addition facts within 20 — matches workbook and screen formats.

1.9+8=2.9+1=3.5+1=4.7+9=5.7+7=6.10+10=7.4+7=8.3+6=9.2+7=10.5+9=11.6+4=12.8+6=13.9+4=14.5+4=15.3+10=16.6+8=17.6+10=18.3+3=19.9+2=20.2+9=21.7+2=22.8+10=23.8+4=24.8+8=
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1.9+8=2.9+1=3.5+1=4.7+9=5.7+7=6.10+10=7.4+7=8.3+6=9.2+7=10.5+9=11.6+4=12.8+6=13.9+4=14.5+4=15.3+10=16.6+8=17.6+10=18.3+3=19.9+2=20.2+9=21.7+2=22.8+10=23.8+4=24.8+8=
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Teaching notes

Horizontal format reads left to right and strips the 'stack' cue, so mental math carries the load. Good for a second look at facts that were solid in vertical form.

Common Core: 1.OA.C.6

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