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
91 − 10 = ______
48 + 20 = ______
74 − 10 = ______
56 + 10 = ______
73 + 20 = ______
84 + 20 = ______
29 + 20 = ______
8 × 10 = ______
11 + 20 = ______
30 − 10 = ______
78 − 10 = ______
40 − 10 = ______
26 − 10 = ______
48 + 10 = ______
57 + 10 = ______
35 + 10 = ______
43 + 20 = ______
14 + 20 = ______
24 − 10 = ______
3 × 10 = ______
