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
51 + 10 = ______
14 + 20 = ______
3 × 10 = ______
88 + 10 = ______
63 + 10 = ______
6 × 10 = ______
11 + 20 = ______
85 − 10 = ______
54 − 10 = ______
84 − 10 = ______
44 + 10 = ______
1 × 10 = ______
7 × 10 = ______
34 + 20 = ______
23 − 10 = ______
21 + 20 = ______
28 − 10 = ______
76 − 10 = ______
16 + 20 = ______
81 − 10 = ______
