12.7+2.53+7.47 | 0.73×1.8+8.2×0.73 | 0.25×39+0.25 |
16.3﹣6.42﹣3.58 | 0.69×101 | 8.4×(64﹣54÷9) |
6.32+17.8+3.68
=()+17.8
=
①2.3+5.5-2.3+5.5
②3.6×5.5÷3.6×5.5
③6.8÷3.4×6.8÷3.4
④5.5-2.3+5.5-2.3
⑤3.6×5.5÷(3.6×5.5)
⑥6.8÷3.4×(6.8÷3.4)
①4.35+8.6+15.65+1.4
②19.32-5.56-3.44
③37.6-(7.6+3.25)
④5.49+2.68-3.49
⑤6.17+3.83+1.77
⑥8.4+2.5-8.4+3.5
3.7+4.29+6.3+5.71
①38×12+189÷9
②7.83× -0.83×
③23.5÷(4.75-4.5× )
④3.62- +1.38-
⑤
⑥
①3000÷25
②(120﹣78)×25﹣989
③6800÷(25×68)
④52+48÷5×2
⑤2727÷9﹣36×43
⑥570×8+43×80
⑦90﹣3.72+6.28
⑧(125+8)×8
⑨0.91+15.6+12.09+5.4
12×8×125=12×(×)
6.2+17.9+3.8=(+)+17.9
42×11+11×58=(+)×
50.27-6.03-1.97=50.27-(+)
6.8+5.34+3.2+2.66=(6.8+)+(5.34+)
①99×57
②17.96-4.04-7.96
③25×16×125
④44+4.8+156+5.2
⑤7.5×12.5-25×0.75
⑥36×[480÷(93-69)]