Câu hỏi của Huy ff

Question

Bài 1 (2 điểm): Thực hiện phép tính:a) (4 + 32 + 6) + (10 – 32 – 2)b) 300:4 + 300:6 – 25c) 17.[29 – (-111)] + 29.(-17)d) 19.43 + (-20).43 – (-40)

Cao ngocduy Cao · Accepted Answer

(mik thấy nó cũng dễ mè ) :3a) (4 + 32 + 6) + (10 – 32 – 2)= (36 + 6) + (-22 – 2)= 42 + (-24) = 42 – 24 = 18b) 300:4 + 300:6 – 25= 75 + 50 – 25 = 125 – 25 = 100c) 17.[29 – (-111)] + 29.(-17)= 17.(29 + 111) – 29.17= 17.29 + 17.111 – 29.17= (17.29 – 29.17) + 17.111= 0 + 1887 = 1887d) 19.43 + (-20).43 – (-40)= 19.43 – 20.43 + 40= 43(19 – 20) + 40= 43.(-1) + 40= -43 + 40 = -3Câu trả lời: (mik thấy nó cũng dễ mè ) :3a) (4 + 32 + 6) + (10 – 32 – 2)= (36 + 6) + (-22 – 2)= 42 + (-24) = 42 – 24 = 18b) 300:4 + 300:6 – 25= 75 + 50 – 25 = 125 – 25 = 100c) 17.[29 – (-111)] + 29.(-17)= 17.(29 + 111) – 29.17= 17.29 + 17.111 – 29.17= (17.29 – 29.17) + 17.111= 0 + 1887 = 1887d) 19.43 + (-20).43 – (-40)= 19.43 – 20.43 + 40= 43(19 – 20) + 40= 43.(-1) + 40= -43 + 40 = -3

animepham · Answer

a) (4 + 32 + 6) + (10 – 32 – 2) = 42 + -24 = 18b) 300:4 + 300:6 – 25 = 75 + 50 - 25 = 100c) 17.[29 – (-111)] + 29.(-17) = 17.140 + -29.17 = 17.(140 + -29) = 17.111 = 1887d) 19.43 + (-20).43 – (-40) = 43.(19 + -20) - -40 = 43.-1 + 40 = -43 + 40 = -3Câu trả lời: a) (4 + 32 + 6) + (10 – 32 – 2) = 42 + -24 = 18b) 300:4 + 300:6 – 25 = 75 + 50 - 25 = 100c) 17.[29 – (-111)] + 29.(-17) = 17.140 + -29.17 = 17.(140 + -29) = 17.111 = 1887d) 19.43 + (-20).43 – (-40) = 43.(19 + -20) - -40 = 43.-1 + 40 = -43 + 40 = -3

⭐Hannie⭐ · Answer

$a) (4 + 32 + 6) + (10 – 32 – 2)$$=
4
+
32
+
6
+
10
−
32
−
2$$=
(
4
+
6
)
+
(
32
−
32
)
+
(
10
−
2
)$$=
10
+
0
+
8
=
18$$b) 300:4 + 300:6 – 25$$=
75
+
50
−
25$$=$$
(
75
−
25
)
+
50$$=
50
+
50
=
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17
.
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29
+
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29
.
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29
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19
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43
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(
−
1
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40$$\text{=
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43
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40
=
−
3}$Câu trả lời: $a) (4 + 32 + 6) + (10 – 32 – 2)$$=
4
+
32
+
6
+
10
−
32
−
2$$=
(
4
+
6
)
+
(
32
−
32
)
+
(
10
−
2
)$$=
10
+
0
+
8
=
18$$b) 300:4 + 300:6 – 25$$=
75
+
50
−
25$$=$$
(
75
−
25
)
+
50$$=
50
+
50
=
100$$c) 17.[29 – (-111)] + 29.(-17)$$=$$
17
.
(
29
+
111
)
−
29
.
17$$=
17
.
(
29
−
29
+
111
)$$=
17
.
111
=
1887$$d) 19.43 + (-20).43 – (-40)$$=$$
19
.
43
−
20
.
43
+
40$$=
43
.
(
19
−
20
)
+
40$$=
43
.
(
−
1
)
+
40$$\text{=
−
43
+
40
=
−
3}$

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