二十以内的数的分解.docx

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1、2233444021103120413220+2=0+3=3–0=0+4=4–0=1+1=3+0=3–1=4+0=4+1=2–0=1+2=3–2=1+3=4–2=2–1=2+1=3–3=3+1=4–3=2+2=4–4=5556666051423061524330+5=5–0=0+6=6–0=5+0=5–1=6+0=6–1=1+4=5–2=1+5=6–2=4+1=5–3=5+1=6–3=2+3=5–4=2+4=6–4=3+2=5–5=4+2=6–5=3+3=6–6=7777888880716253408172635440+7=3+4=7–2=0+8=3+5=8–3=7

2、+0=4+3=7–3=8+0=5+3=8–4=1+6=7–4=1+7=4+4=8–5=6+1=7–5=7+1=8–0=8–6=2+5=7–0=7–6=2+6=8–1=8–7=5+2=7–1=7–7=6+2=8–2=8–8=9999907162534080+9=3+6=9–0=9–6=9+0=6+3=9–1=9–7=1+8=4+5=9–2=9–8=8+1=5+4=9–3=9–9=2+7=9–4=7+2=9–5=10101010101001019283746550+10=3+7=10–0=10–6=10+0=7+3=10–1=10–7=1+9=4+6=10–2=10–8

3、=9+1=6+4=10–3=10–9=2+8=5+5=10–4=10–10=8+2=10–5=111111111111011110293847560+11=3+8=11–0=11–6=11+0=8+3=11–1=11–7=1+10=4+7=11–2=11-8=10+1=7+4=11–3=11–9=2+9=5+6=11–4=11–10=9+2=6+5=11–5=11–11=12121212121212012111210394857660+12=3+9=12–0=12–6=12+0=9+3=12–1=12–7=1+11=4+8=12–2=12-8=11+1=8+4=12

4、–3=12–9=2+10=5+7=12–4=12–10=10+2=7+5=12–5=12–11=6+6=12–12=131313131313130131122113104958670+13=3+10=6+7=13–0=13–6=13–12=13+0=10+3=7+6=13–1=13–7=13–13=1+12=4+9=13–2=13-8=12+1=9+4=13–3=13–9=2+11=5+8=13–4=13–10=11+2=8+5=13–5=13–11=14141414141414140141132123114105967770+14=3+11=6+8=14–0=14

5、–6=14–12=14+0=11+3=8+6=14–1=14–7=14–13=1+13=4+10=7+7=14–2=14-8=14–14=13+1=10+4=14–3=14–9=2+12=5+9=14–4=14–10=12+2=9+5=14–5=14–11=15151515151515150141132123114105967770+15=3+12=6+9=15–0=15–6=15–12=15+0=12+3=9+6=15–1=15–7=15–13=1+14=4+11=7+8=15–2=15-8=15–14=14+1=11+4=8+7=15–3=15–9=15–15=

6、2+13=5+10=15–4=15–10=13+2=10+5=15–5=15–11=16161616161616161601611521431341251161079880+16=3+13=6+10=16–0=16–6=16–12=16+0=13+3=10+6=1–1=16–7=16–13=1+15=4+12=7+9=16–2=16-8=16–14=15+1=12+4=9+7=16–3=16–9=16–15=2+14=5+11=8+8=16–4=16–10=16–16=14+2=11+5=16–5=16–11=1717171717171717170171162153

7、14413512611710890+17=3+14=6+11=17–0=17–6=17–12=17+0=14+3=11+6=17–1=17–7=17–13=1+16=4+13=7+10=17–2=17-8=17–14=16+1=13+4=10+7=17–3=17–9=17–15=2+15=5+12=8+9=17–4=17–10=17–16=15+2=12+5=9+8=17–5=17–11=17–17=18181818181818181818018117216315414513612711810990+18=3+15=6+12=18–0=18–6=18–12=18