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
4 × 10 = ______
90 − 10 = ______
74 − 10 = ______
39 + 10 = ______
1 × 10 = ______
47 + 10 = ______
3 × 10 = ______
2 × 10 = ______
76 − 10 = ______
50 + 10 = ______
5 × 10 = ______
67 + 10 = ______
69 + 20 = ______
37 − 10 = ______
9 × 10 = ______
54 + 10 = ______
85 + 20 = ______
37 + 20 = ______
91 − 10 = ______
86 − 10 = ______
