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
38 − 10 = ______
67 + 10 = ______
57 + 20 = ______
5 × 10 = ______
54 + 20 = ______
38 + 10 = ______
4 × 10 = ______
69 − 10 = ______
50 − 10 = ______
12 + 10 = ______
71 + 10 = ______
9 × 10 = ______
15 + 20 = ______
86 + 10 = ______
97 − 10 = ______
2 × 10 = ______
68 − 10 = ______
7 × 10 = ______
3 × 10 = ______
63 + 10 = ______
