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
60 − 10 = ______
25 + 10 = ______
51 − 10 = ______
31 − 10 = ______
92 − 10 = ______
47 + 20 = ______
9 × 10 = ______
42 − 10 = ______
71 + 10 = ______
3 × 10 = ______
54 + 20 = ______
4 × 10 = ______
1 × 10 = ______
69 + 10 = ______
57 − 10 = ______
50 + 10 = ______
84 − 10 = ______
81 + 20 = ______
16 + 10 = ______
45 + 10 = ______
