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
60 + 20 = ______
6 × 10 = ______
75 − 10 = ______
5 × 10 = ______
53 + 10 = ______
2 × 10 = ______
88 − 10 = ______
76 + 20 = ______
63 + 10 = ______
4 × 10 = ______
7 × 10 = ______
81 + 10 = ______
46 − 10 = ______
30 + 10 = ______
58 + 20 = ______
36 + 10 = ______
40 − 10 = ______
43 + 20 = ______
28 − 10 = ______
3 × 10 = ______
