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a, 37 062 + 29 454
b, 596 158 – 45 495
c, 487 x 314
d, 14868 : 42
\(a.x:4=82\)
\(x=82\times4\)
\(x=328\)
\(b.65+x=14\times9\)
\(65+x=126\)
\(x=126-65\)
\(x=61\)
\(c.18+x+12=144\)
\(x+30=144\)
\(x=144-30\)
\(x=114\)
1 / 86*53=4558
33*44=1452
157*24=3768
1122*19=21318
2/
45*13=585
45*26=1170
45*39=1755
3/
25*48=1200
bạn tự đặt tính nha tại trong máy hk có k cho mình nha
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a, 41 235 + 24 756 - 37 968
= 659 911 - 37 968
= 28 023
b, 9872 + (3456 x 2 - 3417)
= 9872 + 3495
= 13 367
c, 25 178 - (4567 - 3514)
= 25 178 - 1053
= 24 125
d, (60 320 - 32 578) - 17 020
= 27 742 - 17 020
= 10 722
e, 917 x 30 - 13 241 + 124
= 27 510 - 13 241 + 124
= 14 269 + 124
= 14 393
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