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
28 + 10 = ______
4 × 10 = ______
84 + 20 = ______
16 + 20 = ______
70 − 10 = ______
84 − 10 = ______
66 − 10 = ______
74 + 10 = ______
24 − 10 = ______
86 − 10 = ______
52 + 10 = ______
58 − 10 = ______
2 × 10 = ______
43 − 10 = ______
89 + 10 = ______
8 × 10 = ______
38 − 10 = ______
69 − 10 = ______
79 + 10 = ______
7 × 10 = ______
