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
68 − 10 = ______
7 × 10 = ______
34 + 10 = ______
3 × 10 = ______
37 − 10 = ______
55 + 10 = ______
2 × 10 = ______
23 + 10 = ______
87 + 10 = ______
57 + 20 = ______
29 + 20 = ______
54 − 10 = ______
6 × 10 = ______
34 − 10 = ______
74 + 20 = ______
9 × 10 = ______
31 + 20 = ______
43 − 10 = ______
22 − 10 = ______
58 + 20 = ______
