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
86 − 10 = ______
43 + 10 = ______
23 − 10 = ______
3 × 10 = ______
7 × 10 = ______
36 + 10 = ______
40 + 20 = ______
21 + 10 = ______
4 × 10 = ______
78 + 10 = ______
63 + 20 = ______
73 + 10 = ______
91 − 10 = ______
54 − 10 = ______
75 − 10 = ______
60 + 20 = ______
5 × 10 = ______
8 × 10 = ______
1 × 10 = ______
19 + 10 = ______
