1. 直接写得数。
①960÷40=
②276+224=
③50×49=
④361-152=
⑤245+156=
⑥70×10=
⑦500+268=
⑧486÷81=
⑨61×8=
⑩639÷71=
⑪653-123=
⑫630÷45=
⑬210÷30=
⑭755+155=
⑮73×40=
⑯640+153=
⑰255÷51=
⑱59×40=
⑲352-135=
⑳835÷5=
㉑303+608=
㉒105×50=
㉓350+200=
㉔380÷19=
㉕900-461=
㉖796÷4=
㉗208×4=
㉘348+165=
㉙840÷21=
㉚220÷22=
㉛0.25+0.34=
㉜1.36+2.52=
㉝0.78+0.11=
㉞3.05+1.84=
㉟0.89-0.23=
㊱3.68-1.54=
㊲0.75-0.41=
㊳5.92-2.30=
㊴4.16-0.05=
㊵2.17+0.62=
④①0.46+0.53=
④②0.97-0.62=
④③7.45-3.12=
④④2.83-1.71=
④⑤6.51-4.20=
④⑥4.22+3.15=
④⑦5.08+2.71=
④⑧0.39+0.40=
④⑨16.66-8.68=
⑤⑩9.28-5.17=
⑤①3.09-1.02=
⑤②6.13+1.25=
⑤③0.82+0.71=
⑤④7.34+2.05=
⑤⑤1.65+3.41=
⑤⑥0.65+0.32=
⑤⑦8.11+1.86=
⑤⑧1.74-0.50=
⑤⑨8.37-6.25=
⑥⑩0.58-0.16=

①960÷40=24
②276+224=500
③50×49=2450
④361-152=209
⑤245+156=401
⑥70×10=700
⑦500+268=768
⑧486÷81=6
⑨61×8=488
⑩639÷71=9
⑪653-123=530
⑫630÷45=14
⑬210÷30=7
⑭755+155=910
⑮73×40=2920
⑯640+153=793
⑰255÷51=5
⑱59×40=2360
⑲352-135=217
⑳835÷5=167
㉑303+608=911
㉒105×50=5250
㉓350+200=550
㉔380÷19=20
㉕900-461=439
㉖796÷4=199
㉗208×4=832
㉘348+165=513
㉙840÷21=40
㉚220÷22=10
㉛0.25+0.34=0.59
㉜1.36+2.52=3.88
㉝0.78+0.11=0.89
㉞3.05+1.84=4.89
㉟0.89-0.23=0.66
㊱3.68-1.54=2.14
㊲0.75-0.41=0.34
㊳5.92-2.30=3.62
㊴4.16-0.05=4.11
㊵2.17+0.62=2.79
㊶0.46+0.53=0.99
㊷0.97-0.62=0.35
㊸7.45-3.12=4.33
㊹2.83-1.71=1.12
㊺6.51-4.20=2.31
㊻4.22+3.15=7.37
㊼5.08+2.71=7.79
㊽0.39+0.40=0.79
㊾16.66-8.68=7.98
㊿9.28-5.17=4.11
51 3.09-1.02=2.07
52 6.13+1.25=7.38
53 0.82+0.71=1.53
54 7.34+2.05=9.39
55 1.65+3.41=5.06
56 0.65+0.32=0.97
57 8.11+1.86=9.97
58 1.74-0.50=1.24
59 8.37-6.25=2.12
60 0.58-0.16=0.42