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
77 + 10 = ______
2 × 10 = ______
1 × 10 = ______
4 × 10 = ______
74 + 10 = ______
6 × 10 = ______
8 × 10 = ______
85 + 10 = ______
31 − 10 = ______
3 × 10 = ______
41 − 10 = ______
51 + 10 = ______
98 − 10 = ______
41 + 20 = ______
19 + 10 = ______
42 + 10 = ______
72 + 10 = ______
32 − 10 = ______
81 + 10 = ______
70 + 10 = ______
