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
33 + 20 = ______
43 + 10 = ______
56 − 10 = ______
8 × 10 = ______
26 − 10 = ______
69 − 10 = ______
65 + 20 = ______
75 + 10 = ______
38 − 10 = ______
6 × 10 = ______
86 + 20 = ______
57 + 20 = ______
12 + 10 = ______
79 − 10 = ______
7 × 10 = ______
1 × 10 = ______
73 + 20 = ______
41 + 10 = ______
68 + 20 = ______
5 × 10 = ______
