小学数学解方程100道练习题

(1) 4x-20=16 (2) 3.2x-68=149.6 (3) 5x+20=95 (4) 24x+8x=2176 (5) 5(1.2+x)=20.8 (6) 2(x+2.6)=13.6 (7) (x-12):3=7.9 (8) 8(x-12)=96 (9) 3.2x+15.2x=22.08 (10) 5x+29=159 (11) 4x=x+369 (12) 8x+12=60 (13) x+7.6=19.2 (14) 4x-2x=8.98 (15) 85-5x=20 (16) 8.5x-1.5x=87.5 (17) 9.8+3x=65 (18) X-2.5=7.25 (19) 3x-11.4=9.9 (20) 5.8X-5.5X=81 (21) 45+2x=27 (22) 5X+2.8=10.3 (23) 5x+17.2=30.8 (24) 12.5=8.9+x (25) 56x-23x=39.6 (26) 5X+1.5=3x+9.9 (27) 1.2x-1.2=36 (28) 2x-25=79 (29) 3x-99=12 (30) 7x+1.4=4.9 (31) 6x+3.6=5.4 (32) 36x-68.4=0 (33) 44x-44=44 (34) 5x+98=109 (35) 65x-25x=100 (36) 2x-33=100 (37) 5x+16=99 (38) 5x-45=12.8 (39) 14+2x=78 (40) 7x-4X-21=21 (41) 86-12-x=18 (42) 5x-1.5=31 (43) 5x+2.9=20.5 (44) 3x=9.8-0.8 (45) 27+3x=96 (46) 5x-45=36 (47) 3x+2x=29 (48) 5x+24=98.3 (49) 2x+24=87 (50) 105-2x=59 (51) 45-5x=9.9 (52) x+16+12=85 (53) 3X-3.9=11.1 (54) 82-52-4x=10 (55) 5.5X+34.5=7x (56) 4x:3=7.4 (57) 2.8X+350.4=32x (58) 66x+3.6x=187.2 (59) 1.5X+12.5=4x (60) 46x-32x=196 (61) 91.7-X=1.4 (62) 3x+42:3=26 (63) 33.6:X=0.3 (64) 14+4x=76 (65) X-0.5=5.7 (66) 111-5x=70 (67) 110-5x=38 (68) 5x+45=250 (69) 7(x-12)=84 (70) x-55.7=79.4 (71) 78+2x=26 (72) x:0.8=45 (73) (x-16)-45=52 (74) 3x-89=1 (75) x:10+25=21 (76) 3x+8.1=36 (77) (200-x):10=20 (78) 2.3+5x=9.4 (79) 87.3-x=12.6 (80) 3x:1.5=4.5 (81) 56-3x=2 (82) 4X-0.8X=73.6 (83)6.5x=422.5 (84) 0.1(x+6)=3.6 (85) 15.7-x=7.8 (86) (35.5-7.5):x=2 (86) 117:x=2.6 (88) 3x-25=68 (89) 5x+42.5=12.3 (90) 2(x+6)=102 （91） 108-89+5x=4.1 (92) 3x+7x+20=90 (93) 5.5+x+9.19=64 (94) 5(x+4.5)=50 (95) 5x+56=3.5 (96) 10x=46-11 (97) 77+3x=11 (98) 2x-56=26 (99) 8x+4x=48 (100) 2x+66=98