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
77 + 10 = ______
64 − 10 = ______
45 − 10 = ______
5 × 10 = ______
65 − 10 = ______
43 + 20 = ______
26 + 10 = ______
72 − 10 = ______
31 + 10 = ______
83 − 10 = ______
28 + 10 = ______
60 + 20 = ______
52 + 20 = ______
88 + 10 = ______
29 − 10 = ______
39 − 10 = ______
49 + 10 = ______
25 + 10 = ______
7 × 10 = ______
1 × 10 = ______
