1, calculated vertically (the number is accurate to 1%)

8.63×0.42 0.38×2.6

2. Off-model calculation (can be simplified)

0. 125×0.25×8×47.4×0.28+0.28×2.6

4.8×0.9+0.48 (4-0.4)×2.5

3, column vertical calculation

4.83÷3 36.8÷ 16 59.5 1÷ 1 1

2, with vertical calculation (and checking)

8.64÷8 29.29÷29 1 1 1÷0.37 24÷96

4, column vertical calculation and checking calculation

2.862÷ 1.08 47.04÷0.56

4. Calculate with vertical lines (decimal places)

10.05÷32 2 10÷ 187 4.035÷2.4

276+228+353+2 19

(375+ 1034)+(966+ 125)

( 130+783+270)+ 10 17

36+63-36+63

76+ 145+24

125×32

99×32+99

152-38-62

158+262+ 138

375+2 19+38 1+225

500 1-247- 102 1-232

( 18 1+2564)+27 19

378+44+ 144+242+222

99× 1 1

88× 102

80×602

(20+4)×25

836-27-73

465-2 13-65

1260÷ 18÷7

8× 10 1-8

734-68+25

25×6+4)

80- 138- 162

250× 13×4

3200/4/25

88× 125

99×38+38

17×23-23×7

72× 125

2000/( 125/8)

800- 138- 162

672-36+64

1034+78+320+ 120

25+75-25+75

2000÷ 125÷8

25×(4+8)

1280÷ 16÷8

5×99+5

98+265+202

273-73-27

9.07-22.78÷3.4 1.05÷0.7+ 18.9

2 1.5÷0.05×0.6

30-[5.5+ 18÷(5.2+3.8)]

0.4×5÷0.4×5 (7.5-2.3×0.4)÷0.02

6.8×0.75÷0.5 13.75÷0. 125–2.75 1.53+23.4÷7.2

5.3×6.3+2.3= 4.4×7.3+5.3=

4×8.8+ 1.5= 4. 1×0.8-0.2=

9.9× 1.4+0.6= 6.4×2.4+3.6=

12.48-4×9.7= 9.8× 1.3-0.3=

4.8×9. 1-0.5= 2.9+0.6×7.5=

4.2× 1.8-0. 1= 8.6×6.5+6.4=

5.59-3×4.3= 0.2×5.6+2.5=

3.053-0. 1×5.3=

9.4×8.4+5.8= 0.5×4.6+7. 1=

6.908- 1.3× 1.6=

20 1 1.248-4.6×3.8=

13.596-9. 1×5.6= 229.570.4× 1.9=

1 1.259-2. 1×7.9=

7.3+3.8×2.3= 1.8×9.6- 1.7=

9.3+6. 1×4.8= 27.5×5.7+5.8=

8.7×0. 1-0. 1= 8.999- 1.7×4.7=

8.6×8.9+8= 1.7+0.3×7.6=

4.584-2. 1×0.4= 9.8×4.3+9.6=

7.7×9.9+7.7= 8.7+3.4×9=

0.3+2.8×3.5= 5× 1. 1-0.2=

2.9×8.2+9.2= 3.9× 1.7+0.5=

0.739- 1. 1×4.9= 0.3×0.9-0. 1=

9.2+9×3.9= 8.8+0.6×0. 1=

8.9×5.2+9.3= 4.8+3. 1×9. 1=

1.3×2.2-0.2= 0.9+8.3×8.3=

9.08-3×7.6= 1.288-3.2×0.9=

Enough ~

I'm also writing ~

Don't forget to adopt ~