Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
7 × 10 = ______
86 + 20 = ______
44 + 20 = ______
38 − 10 = ______
30 + 10 = ______
77 − 10 = ______
9 × 10 = ______
43 − 10 = ______
2 × 10 = ______
3 × 10 = ______
22 − 10 = ______
6 × 10 = ______
1 × 10 = ______
30 − 10 = ______
47 + 10 = ______
85 + 20 = ______
60 + 20 = ______
75 + 10 = ______
71 − 10 = ______
65 + 10 = ______
