Page 147 - Razonamiento Matemático Primaria

146.pdf 1 6/09/2019 12:58:32

Desarrolla tus habilidades

Desarrolla y resuelve las siguientes operaciones combinadas.

3
2
4
4
a. 18 x [9 + 198 – 4 + (168 56)] d. 225 + (3 + 8 x 9) – x 4 2
1 000
18 x [81 + 198 – 256 + 3] 15 + (3 + 8 x 9) – 10 x 16
4
18 x [279 – 256 + 3] 15 + (81 + 72) – 10 x 16
18 x [23 + 3] 15 + 153 – 10 x 16

15 + 153 – 160
18 x 26

168 – 160
468
8

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b. [(5 + 163) – 74 + 6 ] x 10 + 397
2
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[(125 + 163) – 74 + 216] x 10 + 397 e. 3 x 2 – 3 216 (2 16 + 1) + 81
[288 – 74 + 216] x 10 + 397 9 x 2 – 6 (32 16 + 1) + 9

9 x 2 – 6 (2 + 1) + 9
[214 + 216] x 10 + 397
9 x 2 – 6 3 + 9
430 x 10 + 397
18 – 2 + 9
4 300 + 397
16 + 9
4 697
25
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c. 196 + (4 – 6 x 8) x 2 3
64
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4
14 + (4 – 6 x 8) x 8
f. 2 x 2 – 3 216 – (4 – )+ (3 – 2 )
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7
5
3
169
4
14 + (64 – 6 x 8) x 8
32 x 2 – 6 – (64 – )+ (243 – 128)
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14 + (64 – 48) x 8
4
32 x 2 – 6 – 51 + 115
4
14 + 16 x 8 64 – 6 – 51 + 115
14 + 4 x 8 58 – 51 + 115
7 + 115
14 + 32
122
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