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
73 + 20 = ______
88 + 20 = ______
3 × 10 = ______
94 − 10 = ______
23 + 20 = ______
18 + 20 = ______
9 × 10 = ______
4 × 10 = ______
7 × 10 = ______
37 + 20 = ______
38 + 10 = ______
76 + 10 = ______
8 × 10 = ______
88 + 10 = ______
85 − 10 = ______
14 + 20 = ______
75 − 10 = ______
25 − 10 = ______
63 + 20 = ______
33 + 20 = ______
