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
26 − 10 = ______
75 + 10 = ______
64 − 10 = ______
43 − 10 = ______
42 + 20 = ______
44 + 10 = ______
53 − 10 = ______
9 × 10 = ______
42 − 10 = ______
30 − 10 = ______
24 + 10 = ______
39 + 20 = ______
46 + 10 = ______
64 + 20 = ______
63 + 20 = ______
5 × 10 = ______
6 × 10 = ______
49 + 20 = ______
84 + 20 = ______
8 × 10 = ______
