Mathematics calculation problems of grade 6 in primary school (1) 0.75 × 9 / 13 / 4 / 3 (2) 48 / 35 / 19 / 13 + 22 / 35 / 19 / 13 (3) (3 / 5-2 / 15) / (1 / 12 + 5 / 6) (4) [2 - (2-5 / 2)] × 5 / 8 (5) 13 △ [(1 + 1 / 3) × 3 / 4] (6) (0.8 + 1 / 125) × 5 / 4

Mathematics calculation problems of grade 6 in primary school (1) 0.75 × 9 / 13 / 4 / 3 (2) 48 / 35 / 19 / 13 + 22 / 35 / 19 / 13 (3) (3 / 5-2 / 15) / (1 / 12 + 5 / 6) (4) [2 - (2-5 / 2)] × 5 / 8 (5) 13 △ [(1 + 1 / 3) × 3 / 4] (6) (0.8 + 1 / 125) × 5 / 4

(1) 0.75 × 9 / 13 / 4
=0.75×4/3×9/16
=9/13　　　　　　　　　　　　　　　　　　　　
(2) 48 / 35 / 19 / 13 + 22 / 35 / 19 / 13
=（48/35+22/35）×19/13
=2×19/13
=38/13
(3) (3 / 5-2 / 15) / (1 / 12 + 5 / 6)
=7/15×12/11
=28/55
(4) [2 - (2-5 / 2)] × 5 / 8
=2/5×5/8
=1/4
(5) 13 △ [(1 + 1 / 3) × 3 / 4]
=13÷【4/3×3/4】
=13
(6) (0.8 + 1 / 125) × 5 / 4
=0.8×5/4+1/125×5/4
=1+1/100
=1.01

Mixed calculation problems in sixth grade mathematics

What can be easily calculated should be easily calculated,
64.83 + 5 and 18 / 19 + 35.17 + 44 and 1 / 19
34 and 3 / 4 - (2 and 3 / 19-15.25)
2 and 1 / 2 × 5 and 7 / 11 × 12.5 × 0.032

64.83 + 5 + 18 / 19 + 35.17 + 44 + 1 / 19 = (64.83 + 35.17) + (5 + 18 / 19 + 44 + 1 / 19) = 100 + 50 = 15034 + 3 / 4 - (2 + 3 / 19-15.25) = 34 + 3 / 4-2 + 3 / 19 + 15.25 = 34 + 3 / 4 + 15.25-2 + 3 / 19 = 34 + 3 / 4 + 15 + 1 / 4-2 + 3 / 19 = 50-2 + 3 / 19 = 47 + 16 / 192 + 1 / 2 × 5 + 7