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
85 + 20 = ______
67 + 20 = ______
23 − 10 = ______
53 − 10 = ______
7 × 10 = ______
20 + 10 = ______
84 − 10 = ______
25 + 20 = ______
5 × 10 = ______
43 + 20 = ______
58 − 10 = ______
75 − 10 = ______
79 − 10 = ______
84 + 10 = ______
19 + 10 = ______
48 + 20 = ______
40 + 20 = ______
26 − 10 = ______
36 + 10 = ______
8 × 10 = ______
