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
65 + 20 = ______
68 + 20 = ______
37 − 10 = ______
43 − 10 = ______
32 − 10 = ______
66 + 10 = ______
3 × 10 = ______
31 − 10 = ______
4 × 10 = ______
1 × 10 = ______
11 + 20 = ______
49 + 10 = ______
84 − 10 = ______
52 − 10 = ______
7 × 10 = ______
54 + 10 = ______
69 + 20 = ______
60 + 20 = ______
5 × 10 = ______
67 + 20 = ______
