3382524+– (–)÷(+)
4415363915113×[÷(+)] 12÷(1–)
26537127⑤ [(1–×)]÷
659
[(1–)×]÷4 (–)×70
35251517 97×
533 ×8+×2 965534⑤ 15×+15×
77
(1–×)÷
75⑤ 25÷(–)
8616257912÷×7 731131541–(+) ×– 1249122550
( - ÷4× )÷ (111+999)÷[56×( - )]
1117
( + )×160× 15-( ÷2+5)
581313
43
⑤ 6.4÷ +1.25×3
55
181414123738
(+–)×72 72×(–+) (+
111⑤ 12×(–+)
23434231213145911411)×9+ 30×(–+)
2131336
1143528+×+ 4–÷–
45986515
48×(–+)
11⑤ 24×(+)
68131214668÷9+× 25259
(+)×60–27 5––
⑤
1145+÷+
42583182727×(9+)– ÷+×
429383835141656 2–×– 30×(+–)
3413162512
⑤
7241110+÷+ 10÷10+24÷12 835612114131×+5.2×+1÷
3534
18511+X = 2X– =
1812
3X–1.4×2=1.1
⑤ 5.5x–3x = 1.75 ⑦ 1225X = 15×35
⑨ X×(1+14)= 25
99 X+2–1=173218 ⑥ X+3 =
7510
⑧ X×(13136+8)= 12⑩ (1–5)X = 15
X×× = 10 X× = 8× 412358
X×2 = 8721
⑤ X×3×245 = 18
⑦ X×1×335 = 4 ⑨
X3 = 10
34 15÷X = 56 ⑥ X×910 = 24×18⑧ X×2 = 18×173⑩ 7X–4X = 21 简便计算:
25×37×0.4 75×0.39×4
555125×39×16 13.752.75
⑤245143512943
⑦ 101×99-7
⑨ 41×35×2
888⑥ 351136 ⑧ 334833433.75 ⑩ 136×4.06+4.06×
5214912 7332157115175533 + (-)365
⑤48(1186) ⑦ 3510(71021) ⑨ 3-712-512
8358⑥ 453920
⑧
815×551016+27÷9 ⑩ 57×3558+8×7
计算下列各题,能简算的要简算:
153
25× ÷ × 13.09-8.12-4.88
3210
12×103-4500÷75 ⑤ (215 +3
11
)×15×11
⑦ 7.02×123+877×7.02 ⑨.51111113412
18 ×[12 ÷(35 ×10
9 )]
⑥ 37.5+19.5÷2.5×4 ⑧ 4.684352 ⑩ 102×5.6-5.6×2
解方程:
1136 χ ÷5 = ÷χ =
33
45 χ = 18
25
⑤ 3
5 X + 2.5×8=95
⑦ 4χ+ 12χ= 9
⑨ (1-X)÷3=2-X
57 X – 60% X =18 ⑥ 40%X+30=80 ⑧58χ-325= 5
⑩ X÷25+X÷5=X-19