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
6 × 10 = ______
13 + 10 = ______
47 + 20 = ______
43 + 10 = ______
73 + 20 = ______
23 − 10 = ______
75 + 10 = ______
46 − 10 = ______
27 − 10 = ______
3 × 10 = ______
1 × 10 = ______
88 − 10 = ______
36 − 10 = ______
54 + 20 = ______
56 − 10 = ______
22 − 10 = ______
67 + 20 = ______
34 − 10 = ______
4 × 10 = ______
72 + 10 = ______
