零五网 全部参考答案 亮点给力提优课时作业本答案 2025年亮点给力提优课时作业本四年级数学上册苏教版 第29页解析答案
3
-
3
+
3
÷
3 = 1
3
÷
3
+
3
÷
3 = 2
3
×
3
- (
3
+
3) = 3
(
3
×
3
+
3
) ÷
3 = 4
3
-
3
÷
3
+
3 = 5
3
+
3
+
3
-
3 = 6
3
+
3
+
3
÷
3 = 7
3
×
3
-
3
÷
3 = 8
答案:解析:本题主要考查四则运算以及运算优先级。
$3 - 3 + 3 ÷ 3 = 1$;
$3 ÷ 3 + 3 ÷ 3 = 2$;
$3 × 3 - (3 + 3) = 3$;
$(3 × 3 + 3) ÷ 3 = 4$;
$3 - 3 ÷ 3 + 3 = 5$;
$3 + 3 + 3 - 3 = 6$;
$3 + 3 + 3 ÷ 3 = 7$;
$3 × 3 - 3 ÷ 3 = 8$。
答案:
$3 - 3 + 3 ÷ 3 = 1$;
$3 ÷ 3 + 3 ÷ 3 = 2$;
$3 × 3 - (3 + 3) = 3$;
$(3 × 3 + 3) ÷ 3 = 4$;
$3 - 3 ÷ 3 + 3 = 5$;
$3 + 3 + 3 - 3 = 6$;
$3 + 3 + 3 ÷ 3 = 7$;
$3 × 3 - 3 ÷ 3 = 8$。(部分答案不唯一)
6
(6 - 6)× 6 + 6÷ 6
= 1
6
(6 + 6)÷ 6 + 6 - 6
= 2
6
(6 + 6)÷ 6 + 6÷ 6
= 3
6
(6 + 6 + 6 + 6)÷ 6
= 4
6
6 - (6 + 6)÷ (6 + 6)
= 5
6
(6 - 6)× (6 + 6) + 6
= 6
答案:[跟踪练习] 答案不唯一,如:$(6 - 6)× 6 + 6÷ 6 = 1$ $(6 + 6)÷ 6 + 6 - 6 = 2$ $(6 + 6)÷ 6 + 6÷ 6 = 3$ $(6 + 6 + 6 + 6)÷ 6 = 4$ $6 - (6 + 6)÷ (6 + 6) = 5$ $(6 - 6)× (6 + 6) + 6 = 6$
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