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
36 + 10 = ______
59 + 20 = ______
62 − 10 = ______
84 − 10 = ______
36 − 10 = ______
6 × 10 = ______
20 + 10 = ______
7 × 10 = ______
3 × 10 = ______
40 + 10 = ______
55 + 10 = ______
40 − 10 = ______
58 − 10 = ______
79 + 10 = ______
62 + 10 = ______
60 + 10 = ______
43 − 10 = ______
31 + 10 = ______
70 + 20 = ______
76 + 20 = ______
