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1、解方程:
+X = 2X–=
3X–×2= X+–=
–3x = X+ =
X = 40 X÷ =
X–X = X+X = 18
六年级数学计算题训练二
班别: 姓名: 学号:
1、解方程:
X = 15× X×(+)=
X×(1+)= 25 (1–)X =
X×× = 10 X× = 8×
X× = 15÷X =
六年级数学计算题训练三
班别: 姓名: 学号:
1、解方程:
X×× = 18 X× = 24×
X×× = 4 X× = 18×
= 10 7X–4X = 21
X+x = 20 ×x+×45 = 12
六年级数学计算题训练四
班别: 姓名: 学号:
计算下面各题:
[1–(+)]÷ –×÷3
(1–×)÷ ÷×7
–(+) ×–
25÷(–) +–