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
44 − 10 = ______
58 + 20 = ______
27 + 20 = ______
38 + 20 = ______
51 + 20 = ______
48 + 10 = ______
89 − 10 = ______
77 − 10 = ______
27 − 10 = ______
86 − 10 = ______
89 + 20 = ______
35 − 10 = ______
81 + 20 = ______
33 − 10 = ______
9 × 10 = ______
86 + 20 = ______
84 + 20 = ______
17 + 20 = ______
37 + 10 = ______
12 + 10 = ______
