Here are the solutions for the subtraction problems. I have calculated each one carefully.
Column 1:
* $8.2 - 3.6 = 4.6$
* $12.3 - 8.4 = 3.9$
* $21.3 - 18.5 = 2.8$
* $6.5 - 2.6 = 3.9$
* $22.8 - 15.9 = 6.9$
* $7.6 - 1.9 = 5.7$
* $2.3 - 2.1 = 0.2$
* $20.6 - 14.4 = 6.2$
Column 2:
* $2.8 - 2.2 = 0.6$
* $1.8 - 1.5 = 0.3$
* $14.4 - 9.8 = 4.6$
* $20.4 - 18.8 = 1.6$
* $16.5 - 12.6 = 3.9$
* $6.4 - 3.7 = 2.7$
* $23.1 - 18.5 = 4.6$
* $23.9 - 18.4 = 5.5$
Column 3:
* $12.5 - 3.6 = 8.9$
* $1.6 - 0.9 = 0.7$
* $13.6 - 12.7 = 0.9$
* $7.2 - 4.8 = 2.4$
* $21.5 - 15.1 = 6.4$
* $9.5 - 4.9 = 4.6$
Final Answer:
Column 1: 4.6, 3.9, 2.8, 3.9, 6.9, 5.7, 0.2, 6.2
Column 2: 0.6, 0.3, 4.6, 1.6, 3.9, 2.7, 4.6, 5.5
Column 3: 8.9, 0.7, 0.9, 2.4, 6.4, 4.6
Parent Tip: Review the logic above to help your child master the concept of primary school mathematics.
