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
93 − 10 = ______
49 + 20 = ______
37 + 20 = ______
63 − 10 = ______
17 + 20 = ______
6 × 10 = ______
4 × 10 = ______
72 − 10 = ______
8 × 10 = ______
70 + 10 = ______
42 + 10 = ______
51 + 10 = ______
85 − 10 = ______
3 × 10 = ______
11 + 20 = ______
89 + 20 = ______
40 − 10 = ______
5 × 10 = ______
48 + 20 = ______
46 + 10 = ______
