Question

use the number sentences to draw a picture, and fill in the number bond to tell a math story. 1. 5 + 2 = 7 2. 3 + 6 = 9 3. 7+? = 9

Explanation:

Step1: For 5 + 2 = 7

In the number - bond, the two small squares on the left represent 5 and 2 respectively, and the large square on the right represents 7. For the picture, you could draw 5 circles in one group and 2 circles in another group, and then a big circle around all 7 circles to show the combination.

Step2: For 3 + 6 = 9

In the number - bond, the two small squares on the left represent 3 and 6 respectively, and the large square on the right represents 9. For the picture, draw 3 triangles in one group and 6 triangles in another group, and then a big rectangle around all 9 triangles.

Step3: For 7+? = 9

First, find the missing number by subtraction. Since 9 - 7=2, in the number - bond, the left - hand small squares represent 7 and 2, and the right - hand large square represents 9. For the picture, draw 7 stars in one group and 2 stars in another group, and then a big oval around all 9 stars.

Answer:

1. In the number - bond: left squares have 5 and 2, right square has 7. Picture: 5 circles and 2 circles combined.
2. In the number - bond: left squares have 3 and 6, right square has 9. Picture: 3 triangles and 6 triangles combined.
3. In the number - bond: left squares have 7 and 2, right square has 9. Picture: 7 stars and 2 stars combined.