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Toán Lớp 5: tính: a) (4,578 : 3,27 + 5,232 : 3,27) × 4,08 – 4,08 b) 2000 + (32,4 : 3 – 2,8) × 0,25

Home/ Toán Lớp 5: tính: a) (4,578 : 3,27 + 5,232 : 3,27) × 4,08 – 4,08 b) 2000 + (32,4 : 3 – 2,8) × 0,25

Toán Lớp 5: tính: a) (4,578 : 3,27 + 5,232 : 3,27) × 4,08 – 4,08 b) 2000 + (32,4 : 3 – 2,8) × 0,25

Triều Nguyệt Tháng Bảy 27, 2022 Toán học 2 Comments 0 views

Toán Lớp 5: tính:
a) (4,578 : 3,27 + 5,232 : 3,27) × 4,08 – 4,08
b) 2000 + (32,4 : 3 – 2,8) × 0,25

Comments ( 2 )

phuongthuydung
27 Tháng Bảy, 2022 at 9:23 sáng

Reply

a) (4,578 : 3,27 + 5,232 : 3,27) × 4,08 – 4,08

=(4,578+5,232):3,27× 4,08 – 4,08

=9,81:3,27× 4,08 – 4,08

=3× 4,08 – 4,08

=2× 4,08

=8,16

b) 2000 + (32,4 : 3 – 2,8) × 0,25

=2000 + (10,8-2,8)× 0,25

=2000+8× 0,25

=2000+2

=2002
khanhngantoan
27 Tháng Bảy, 2022 at 9:23 sáng

Reply

a) (\frac{4,578}{3,27} + \frac{5,232}{3,27}) xx 4,08 – 4,08

= \frac{4,578 + 5,232}{3,27} xx 4,08 – 4,08

= \frac{9,81}{3,27} xx 4,08 – 4,08

= 3 xx 4,08 – 4,08

= 12,24 – 4,08 = 8,16

b) 2000 + (\frac{32,4}{3} – 2,8) xx 0,25

= 2000 + (10,8 – 2,8) xx 0,25

= 2000 + 8 xx 0,25

= 2000 + 2 = 2002

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