To solve the expression [tex]\(10 \times 4\)[/tex] ones, we will multiply the two numbers together.
1. The first number is 10.
2. The second number is 4.
3. Multiplying these two numbers: [tex]\(10 \times 4 = 40\)[/tex].
Therefore, [tex]\(10 \times 4\)[/tex] ones equals 40 ones.
So, the blank should be filled as follows:
[tex]\[ 10 \times 4 \text{ ones } = 40 \text{ ones} \][/tex]
