《2025年通城学典活页检测六年级数学下册冀教版》

1. 直接写出得数。
$7.8b - b =$ $9x - 3x =$ $x + 3.6x =$ $b - 0.24b + a =$
$10a - 10a =$ $\frac{9}{a} - \frac{3}{a} =$ $3a×a =$ $8n + 5n - 12n =$
$9.4b - 6.1b =$ $\frac{5}{6}a + \frac{1}{6}a =$ $m×n×7 =$ $m - \frac{1}{3}m×3 =$

答案： $6.8b$ $6x$ $4.6x$ $0.76b + a$ $0$ $\frac{6}{a}$ $3a^{2}$ $n$ $3.3b$ $a$ $7mn$ $0$

2. 解方程。
$5x - 6×4 = 26$ $7(x - 5.5) = 16.8$ $\frac{1}{4}x + \frac{3}{8}x = \frac{3}{4}$
$0.2x + \frac{4}{5} = 8$ $5×(x - \frac{2}{3}) = \frac{5}{6}$ $\frac{1}{3}×(6 + x) = 2.8$
$49 + 40\%x - 15\%x = 89$ $\frac{5}{8}×(x - 0.3) = 75\%$ $\frac{4}{5}×\frac{1}{4} - \frac{1}{2}x = \frac{1}{20}$

答案： （过程略）$x = 10$ $x = 7.9$ $x = \frac{6}{5}$ $x = 36$ $x = \frac{6}{5}$ $x = 2.4$ $x = 160$ $x = \frac{3}{2}$ $x = \frac{3}{10}$