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
46 + 20 = ______
44 − 10 = ______
30 + 10 = ______
76 + 10 = ______
13 + 10 = ______
67 + 10 = ______
89 + 20 = ______
1 × 10 = ______
25 − 10 = ______
8 × 10 = ______
86 + 10 = ______
65 − 10 = ______
26 − 10 = ______
2 × 10 = ______
11 + 10 = ______
96 − 10 = ______
26 + 20 = ______
66 − 10 = ______
5 × 10 = ______
9 × 10 = ______
