新版冀教版六年级上册数学全册单元期中期末

Utr?Õu"\r2. 4 F= 400ƒF 3.5F= 350ƒF\r400 100 = 4ƒF 350+100=3.5ƒF\rNO<?Ed4 ƒFPGd3.5ƒF"L<è"\rP#1.450 + 2 + 7 = 50_ 50X2=100_ 50X7 = 350_\r± 2g \ 6 100_`#350_a"\r2. 2100+ 42% = 5000p_\r±2o 2100p_lmk\65000p_klm"\r3. 12.56 + 3.14 + 2 = 2)F 2 X 1+ 50% = 3)F\r3.14X32 = 28.26y\r)F\r± 2x?@Ad28.26y\r)F"\r4 . 6000000X7,5 = 45000000ƒF= 450pF\r450 + 3 = 150pF 150 + 3 + 2X3 = 90pF\r± 2…†'U[9 0 pF"\r5. 60 + 4= 15F 15X15=225y\rF\r3\r60 + 2X ~ = 18F 60 + 2$18=12F\r12X18 = 216y\rF 225y\rFP216y\rF\r225 $ 216 = 9y\rF\râ?•––š8?›œ@A¢P¢ 9 y\rF"\r£š8@A¤¢?›œP雜š8qr"ê[›œ?@.\rAë 286.4y\rF"\r§w(\r3 2ì†@®¯°x ¨"\r¬(3x$15):(x+15)=9:5\rx=35\r3x= 3X 35= 105(A)\r± 2`†@®¯°105¨ P†@®¯°3 5 ¨"