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
45 − 10 = ______
8 × 10 = ______
37 + 10 = ______
73 + 10 = ______
4 × 10 = ______
71 − 10 = ______
75 − 10 = ______
54 + 20 = ______
6 × 10 = ______
28 + 10 = ______
34 + 20 = ______
51 − 10 = ______
29 + 10 = ______
70 + 10 = ______
57 + 20 = ______
5 × 10 = ______
60 − 10 = ______
3 × 10 = ______
17 + 20 = ______
73 − 10 = ______
