Question

there are three groups of cube models. each group is composed of small cubes, columns of cubes (10 small cubes per column), and large square plates (100 small cubes per plate). the first group: 9 small cubes, 9 columns of cubes, 6 large square plates. the second group: 3 columns of cubes, 2 large square plates, 3 large square plates, 5 small cubes. the third group: 1 large square plate, 6 columns of cubes, 1 large square plate, 7 small cubes. there are blank boxes and lines below each group, probably for writing the number represented by the cube model.

Explanation:

Step1: Count large flats (100 each)

Top: 8 flats → $8 \times 100 = 800$
Middle: $3 + 4 = 7$ flats → $7 \times 100 = 700$
Bottom: $1 + 1 = 2$ flats → $2 \times 100 = 200$

Step2: Count rods (10 each)

Top: 9 rods → $9 \times 10 = 90$
Middle: 3 rods → $3 \times 10 = 30$
Bottom: 6 rods → $6 \times 10 = 60$

Step3: Count small cubes (1 each)

Top: 9 cubes → $9 \times 1 = 9$
Middle: 5 cubes → $5 \times 1 = 5$
Bottom: 7 cubes → $7 \times 1 = 7$

Step4: Sum each group

Top: $800 + 90 + 9 = 899$
Middle: $700 + 30 + 5 = 735$
Bottom: $200 + 60 + 7 = 267$

Answer:

899
735
267